diff --git a/.gitignore b/.gitignore
index 5017d9c4..84e11ab2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,5 @@ build/
 composer.lock
 composer.phar
 vendor/*
+
+.phpunit.result.cache
diff --git a/composer.json b/composer.json
index c829ea44..b9b013f9 100644
--- a/composer.json
+++ b/composer.json
@@ -21,11 +21,11 @@
     }
   ],
   "require": {
-    "php": ">=5.3.0",
+    "php": ">=7.4.0",
     "ext-curl": "*"
   },
   "require-dev": {
-    "phpunit/phpunit": "~4.0",
+    "phpunit/phpunit": "~9.6",
     "satooshi/php-coveralls": "~0.6.1"
   },
   "autoload": {
diff --git a/samples/create_blacklisted_card.php b/samples/create_blacklisted_card.php
new file mode 100644
index 00000000..be1ac1ae
--- /dev/null
+++ b/samples/create_blacklisted_card.php
@@ -0,0 +1,16 @@
+<?php
+
+require_once('config.php');
+
+function createBlacklistedCard() {
+    $request = new \Iyzipay\Request\CreateBlackListedCardRequest();
+    $request->setLocale(\Iyzipay\Model\Locale::TR);
+    $request->setConversationId("123456789");
+    $request->setCardToken('G7Zzo5Y24cxwaIwC4h+jUJXtqTA=');
+    $request->setCardUserKey('ew9hzoujBUJgOUer8st0ler0dOQ=');
+
+    $blacklistedCard = \Iyzipay\Model\BlacklistedCard::create($request, Config::options());
+    print_r($blacklistedCard);
+}
+
+createBlacklistedCard();
diff --git a/samples/iyzilink_add_product_sample.php b/samples/iyzilink_add_product_sample.php
index 27d517ef..e009e198 100644
--- a/samples/iyzilink_add_product_sample.php
+++ b/samples/iyzilink_add_product_sample.php
@@ -14,6 +14,9 @@
 $request->setAddressIgnorable(false);
 $request->setSoldLimit(1);
 $request->setInstallmentRequest(false);
+$request->setSourceType('API');
+$request->setStockEnabled(true);
+$request->setStockCount(1);
 $response = \Iyzipay\Model\Iyzilink\IyziLinkSaveProduct::create($request, Config::options());
 
 print_r($response);
diff --git a/samples/iyzilink_create_fastlink_sample.php b/samples/iyzilink_create_fastlink_sample.php
new file mode 100644
index 00000000..d6c788e2
--- /dev/null
+++ b/samples/iyzilink_create_fastlink_sample.php
@@ -0,0 +1,18 @@
+<?php
+
+require_once("config.php");
+
+function iyzilinkCreateFastLink() {
+    $request = new \Iyzipay\Request\Iyzilink\IyziLinkCreateFastLinkRequest();
+    $request->setLocale(\Iyzipay\Model\Locale::TR);
+    $request->setConversationId("123456789");
+    $request->setDescription("ft-description-fast-link");
+    $request->setPrice(99.73);
+    $request->setCurrencyCode("TRY");
+    $request->setSourceType("WEB");
+
+    $iyzilinkFastLink = \Iyzipay\Model\Iyzilink\IyziLinkFastLink::create($request, Config::options());
+    print_r($iyzilinkFastLink);
+}
+
+iyzilinkCreateFastLink();
diff --git a/samples/iyzilink_search_merchant_products_example.php b/samples/iyzilink_search_merchant_products_example.php
new file mode 100644
index 00000000..ee1c7e25
--- /dev/null
+++ b/samples/iyzilink_search_merchant_products_example.php
@@ -0,0 +1,16 @@
+<?php
+
+require_once("config.php");
+
+function iyzilinkSearchMerchantProducts(): void {
+    $request = new \Iyzipay\Request\Iyzilink\IyziLinkSearchMerchantProductsRequest();
+    $request->setLocale(\Iyzipay\Model\Locale::TR);
+    $request->setPage(1);
+    $request->setCount(10);
+    $request->setConversationId('123456');
+
+    $iyziLinkSearchMerchantProducts= \Iyzipay\Model\Iyzilink\IyziLinkSearchMerchantProducts::create($request,Config::options());
+    print_r($iyziLinkSearchMerchantProducts);
+}
+
+iyzilinkSearchMerchantProducts();
diff --git a/samples/iyzilink_update_product_status.php b/samples/iyzilink_update_product_status.php
new file mode 100644
index 00000000..87a058b3
--- /dev/null
+++ b/samples/iyzilink_update_product_status.php
@@ -0,0 +1,15 @@
+<?php
+
+require_once("config.php");
+
+function iyzilinkUpdateProductStatus(): void {
+    $request = new \Iyzipay\Request\Iyzilink\IyziLinkUpdateProductStatusRequest();
+    $request->setLocale(\Iyzipay\Model\Locale::TR);
+    $request->setProductStatus(\Iyzipay\Model\Status::PASSIVE);
+    $request->setToken('AAM');
+
+    $iyzilinkUpdateProductStatus = \Iyzipay\Model\Iyzilink\IyziLinkUpdateProductStatus::create($request, Config::options());
+    print_r($iyzilinkUpdateProductStatus);
+}
+
+iyzilinkUpdateProductStatus();
diff --git a/samples/retrieve_blacklisted_card.php b/samples/retrieve_blacklisted_card.php
new file mode 100644
index 00000000..1d0f9f02
--- /dev/null
+++ b/samples/retrieve_blacklisted_card.php
@@ -0,0 +1,15 @@
+<?php
+
+require_once('config.php');
+
+function retrieveBlacklistedCard() {
+    $request = new \Iyzipay\Request\RetrieveBlacklistedCardRequest();
+    $request->setLocale(\Iyzipay\Model\Locale::TR);
+    $request->setConversationId("123456789");
+    $request->setCardNumber('5528790000000008');
+
+    $blacklistedCard = \Iyzipay\Model\BlacklistedCard::retrieve($request, Config::options());
+    print_r($blacklistedCard);
+}
+
+retrieveBlacklistedCard();
diff --git a/samples/update_blacklisted_card.php b/samples/update_blacklisted_card.php
new file mode 100644
index 00000000..82153f2d
--- /dev/null
+++ b/samples/update_blacklisted_card.php
@@ -0,0 +1,16 @@
+<?php
+
+require_once('config.php');
+
+function updateBlacklistedCard() {
+$request = new \Iyzipay\Request\UpdateBlackListedCardRequest();
+    $request->setLocale(\Iyzipay\Model\Locale::TR);
+    $request->setConversationId("123456789");
+    $request->setCardToken('G7Zzo5Y24cxwaIwC4h+jUJXtqTA=');
+    $request->setCardUserKey('ew9hzoujBUJgOUer8st0ler0dOQ=');
+
+    $blacklistedCard = \Iyzipay\Model\BlacklistedCard::update($request,Config::options());
+    print_r($blacklistedCard);
+}
+
+updateBlacklistedCard();
diff --git a/src/Iyzipay/DefaultHttpClient.php b/src/Iyzipay/DefaultHttpClient.php
index cab25812..08d159b2 100644
--- a/src/Iyzipay/DefaultHttpClient.php
+++ b/src/Iyzipay/DefaultHttpClient.php
@@ -65,6 +65,18 @@ public function put($url, $header, $content)
         ));
     }
 
+    public function patch($url, $header, $content)
+    {
+        return $this->curl->exec($url, array(
+            CURLOPT_CUSTOMREQUEST => "PATCH",
+            CURLOPT_POSTFIELDS => $content,
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_VERBOSE => false,
+            CURLOPT_HEADER => false,
+            CURLOPT_HTTPHEADER => $header
+        ));
+    }
+
     public function delete($url, $header, $content = null)
     {
         return $this->curl->exec($url, array(
diff --git a/src/Iyzipay/IyzipayResource.php b/src/Iyzipay/IyzipayResource.php
index 3fbc2ea9..04465838 100644
--- a/src/Iyzipay/IyzipayResource.php
+++ b/src/Iyzipay/IyzipayResource.php
@@ -27,7 +27,7 @@ protected static function getHttpHeaders(Request $request, Options $options)
         return $header;
     }
 
-    protected static function getHttpHeadersV2($uri, Request $request = null, Options $options)
+    protected static function getHttpHeadersV2($uri, Request $request = null, Options $options, bool $addRandom = false)
     {
         $header = array(
             "Accept: application/json",
@@ -36,6 +36,7 @@ protected static function getHttpHeadersV2($uri, Request $request = null, Option
 
         $rnd = uniqid();
         array_push($header, "Authorization: " . self::prepareAuthorizationStringV2($uri, $request, $options, $rnd));
+        $addRandom && array_push($header, "x-iyzi-rnd: " . $rnd);
         array_push($header, "x-iyzi-client-version: " . "iyzipay-php-2.0.43");
 
         return $header;
diff --git a/src/Iyzipay/Model/BlacklistedCard.php b/src/Iyzipay/Model/BlacklistedCard.php
new file mode 100644
index 00000000..05d35242
--- /dev/null
+++ b/src/Iyzipay/Model/BlacklistedCard.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Iyzipay\Model;
+
+use Iyzipay\IyzipayResource;
+use Iyzipay\Model\Mapper\BlacklistedCardMapper;
+use Iyzipay\Request\CreateBlackListedCardRequest;
+use Iyzipay\Request\RetrieveBlacklistedCardRequest;
+use Iyzipay\Request\UpdateBlackListedCardRequest;
+use Iyzipay\Options;
+
+class BlacklistedCard extends IyzipayResource {
+    private string $cardUserKey;
+    private string $cardToken;
+    private string $cardNumber;
+
+    public static function create(CreateBlackListedCardRequest $request, Options $options): BlacklistedCard {
+        $rawResult = parent::httpClient()->post($options->getBaseUrl() . "/cardstorage/blacklist/card", parent::getHttpHeaders($request, $options), $request->toJsonString());
+        return BlacklistedCardMapper::create($rawResult)->jsonDecode()->mapBlacklistedCard(new BlacklistedCard());
+    }
+
+    public static function retrieve(RetrieveBlacklistedCardRequest $request, Options $options): BlacklistedCard {
+        $rawResult = parent::httpClient()->post(($options)->getBaseUrl() . '/cardstorage/blacklist/card/retrieve', parent::getHttpHeaders($request, $options), $request->toJsonString());
+        return BlacklistedCardMapper::create($rawResult)->jsonDecode()->mapRetrieveBlacklistedCard(new BlacklistedCard());
+    }
+
+    public static function update(UpdateBlackListedCardRequest $request, Options $options): BlacklistedCard {
+        $rawResult = parent::httpClient()->post(($options)->getBaseUrl() . '/cardstorage/blacklist/card/inactive', parent::getHttpHeaders($request, $options), $request->toJsonString());
+        return BlacklistedCardMapper::create($rawResult)->jsonDecode()->mapBlacklistedCard(new BlacklistedCard());
+    }
+
+    public function getCardUserKey(): string {
+        return $this->cardUserKey;
+    }
+
+    public function setCardUserKey($cardUserKey): void {
+        $this->cardUserKey = $cardUserKey;
+    }
+
+    public function getCardToken(): string {
+        return $this->cardToken;
+    }
+
+    public function setCardToken($cardToken): void {
+        $this->cardToken = $cardToken;
+    }
+
+    public function getCardNumber(): string {
+        return $this->cardNumber;
+    }
+
+    public function setCardNumber(string $cardNumber): void {
+        $this->cardNumber = $cardNumber;
+    }
+}
\ No newline at end of file
diff --git a/src/Iyzipay/Model/Iyzilink/IyziLinkFastLink.php b/src/Iyzipay/Model/Iyzilink/IyziLinkFastLink.php
new file mode 100644
index 00000000..67c3a754
--- /dev/null
+++ b/src/Iyzipay/Model/Iyzilink/IyziLinkFastLink.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Iyzipay\Model\Iyzilink;
+
+use Iyzipay\IyzipayResource;
+use Iyzipay\Model\Mapper\Iyzilink\IyziLinkCreateFastLinkMapper;
+use Iyzipay\Request\Iyzilink\IyziLinkCreateFastLinkRequest;
+use Iyzipay\Options;
+use Iyzipay\RequestStringBuilder;
+
+class IyziLinkFastLink extends IyzipayResource {
+    private string $description;
+    private $price;
+    private string $currencyCode;
+    private string $sourceType;
+
+    public static function create(IyziLinkCreateFastLinkRequest $request, Options $options): IyziLinkFastLink {
+        $uri = $options->getBaseUrl() . "/v2/iyzilink/fast-link/products" . RequestStringBuilder::requestToStringQuery($request, 'locale');
+        $rawResult = parent::httpClient()->post($uri, parent::getHttpHeadersV2($uri, $request, $options), $request->toJsonString());
+        return IyziLinkCreateFastLinkMapper::create($rawResult)->jsonDecode()->mapIyziLinkCreateFastLink(new IyziLinkFastLink());
+    }
+
+    public function getDescription(): string {
+        return $this->description;
+    }
+
+    public function setDescription(string $description): void {
+        $this->description = $description;
+    }
+
+    public function getPrice() {
+        return $this->price;
+    }
+
+    public function setPrice($price): void {
+        $this->price = $price;
+    }
+
+    public function getCurrencyCode(): string {
+        return $this->currencyCode;
+    }
+
+    public function setCurrencyCode(string $currencyCode): void {
+        $this->currencyCode = $currencyCode;
+    }
+
+    public function getSourceType(): string {
+        return $this->sourceType;
+    }
+
+    public function setSourceType(string $sourceType): void {
+        $this->sourceType = $sourceType;
+    }
+}
diff --git a/src/Iyzipay/Model/Iyzilink/IyziLinkSaveProduct.php b/src/Iyzipay/Model/Iyzilink/IyziLinkSaveProduct.php
index a31611ac..afeba3c5 100644
--- a/src/Iyzipay/Model/Iyzilink/IyziLinkSaveProduct.php
+++ b/src/Iyzipay/Model/Iyzilink/IyziLinkSaveProduct.php
@@ -7,12 +7,10 @@
 use Iyzipay\Options;
 use Iyzipay\RequestStringBuilder;
 
-class IyziLinkSaveProduct extends IyziLinkSaveProductResource
-{
-    public static function create(IyziLinkSaveProductRequest $request, Options $options)
-    {
-        $uri = $options->getBaseUrl() . "/v2/iyzilink/products/". RequestStringBuilder::requestToStringQuery($request, null);
-        $rawResult = parent::httpClient()->post($uri, parent::getHttpHeadersV2($uri, $request, $options), $request->toJsonString());
+class IyziLinkSaveProduct extends IyziLinkSaveProductResource {
+    public static function create(IyziLinkSaveProductRequest $request, Options $options): IyziLinkSaveProduct {
+        $uri = $options->getBaseUrl() . "/v2/iyzilink/products/" . RequestStringBuilder::requestToStringQuery($request, null);
+        $rawResult = parent::httpClient()->post($options->getBaseUrl() . "/v2/iyzilink/products/", parent::getHttpHeadersV2($uri, $request, $options), $request->toJsonString());
         return IyziLinkSaveProductMapper::create($rawResult)->jsonDecode()->mapIyziLinkSaveProduct(new IyziLinkSaveProduct());
     }
 }
diff --git a/src/Iyzipay/Model/Iyzilink/IyziLinkSaveProductResource.php b/src/Iyzipay/Model/Iyzilink/IyziLinkSaveProductResource.php
index 98691297..0a82b9ac 100644
--- a/src/Iyzipay/Model/Iyzilink/IyziLinkSaveProductResource.php
+++ b/src/Iyzipay/Model/Iyzilink/IyziLinkSaveProductResource.php
@@ -15,6 +15,9 @@ class IyziLinkSaveProductResource extends IyzipayResource
     private $token;
     private $url;
     private $imageUrl;
+    private $sourceType;
+    private $stockEnabled;
+    private $stockCount;
 
     public function getBase64EncodedImage()
     {
@@ -71,4 +74,34 @@ public function setImageUrl($imageUrl)
     {
         $this->imageUrl = $imageUrl;
     }
+
+    public function getSourceType()
+    {
+        return $this->sourceType;
+    }
+
+    public function setSourceType($sourceType)
+    {
+        $this->sourceType = $sourceType;
+    }
+
+    public function getStockEnabled()
+    {
+        return $this->stockEnabled;
+    }
+
+    public function setStockEnabled($stockEnabled)
+    {
+        $this->stockEnabled = $stockEnabled;
+    }
+
+    public function getStockCount()
+    {
+        return $this->stockCount;
+    }
+
+    public function setStockCount($stockCount)
+    {
+        $this->stockCount = $stockCount;
+    }
 }
\ No newline at end of file
diff --git a/src/Iyzipay/Model/Iyzilink/IyziLinkSearchMerchantProducts.php b/src/Iyzipay/Model/Iyzilink/IyziLinkSearchMerchantProducts.php
new file mode 100644
index 00000000..d2e6da5c
--- /dev/null
+++ b/src/Iyzipay/Model/Iyzilink/IyziLinkSearchMerchantProducts.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Iyzipay\Model\Iyzilink;
+
+use Iyzipay\IyzipayResource;
+use Iyzipay\Model\Mapper\Iyzilink\IyziLinkSearchMerchantProductsMapper;
+use Iyzipay\Request\Iyzilink\IyziLinkSearchMerchantProductsRequest;
+use Iyzipay\Options;
+use Iyzipay\RequestStringBuilder;
+
+class IyziLinkSearchMerchantProducts extends IyzipayResource {
+    private int $page;
+    private int $count;
+
+    public function getPage(): int {
+        return $this->page;
+    }
+
+    public function setPage(int $page): void {
+        $this->page = $page;
+    }
+
+    public function getCount(): int {
+        return $this->count;
+    }
+
+    public function setCount(int $count): void {
+        $this->count = $count;
+    }
+
+    public static function create(IyziLinkSearchMerchantProductsRequest $request, Options $options): IyziLinkSearchMerchantProducts {
+        $uri = $options->getBaseUrl() . "/v2/iyzilink/products" . RequestStringBuilder::requestToStringQuery($request, 'pages');
+        $rawResult = parent::httpClient()->getV2($uri, parent::getHttpHeadersV2($uri, null, $options));
+        return IyziLinkSearchMerchantProductsMapper::create($rawResult)->jsonDecode()->mapIyziLinkSearchMerchantProducts(new IyziLinkSearchMerchantProducts());
+    }
+}
diff --git a/src/Iyzipay/Model/Iyzilink/IyziLinkUpdateProductStatus.php b/src/Iyzipay/Model/Iyzilink/IyziLinkUpdateProductStatus.php
new file mode 100644
index 00000000..1c58397a
--- /dev/null
+++ b/src/Iyzipay/Model/Iyzilink/IyziLinkUpdateProductStatus.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Iyzipay\Model\Iyzilink;
+
+use Iyzipay\IyzipayResource;
+use Iyzipay\Model\Mapper\Iyzilink\IyziLinkUpdateProductStatusMapper;
+use Iyzipay\Request\Iyzilink\IyziLinkUpdateProductStatusRequest;
+use Iyzipay\Options;
+use Iyzipay\RequestStringBuilder;
+
+class IyziLinkUpdateProductStatus extends IyzipayResource {
+    private string $token;
+    private string $productStatus;
+
+    public function getToken(): string {
+        return $this->token;
+    }
+
+    public function setToken(string $token): void {
+        $this->token = $token;
+    }
+
+    public function getProductStatus(): string {
+        return $this->productStatus;
+    }
+
+    public function setProductStatus(string $productStatus): void {
+        $this->productStatus = $productStatus;
+    }
+
+    public static function create(IyziLinkUpdateProductStatusRequest $request, Options $options) {
+        $token = $request->getToken();
+        $productStatus = $request->getProductStatus();
+        $uri = $options->getBaseUrl() . "/v2/iyzilink/products/$token/status/$productStatus" . RequestStringBuilder::requestToStringQuery($request, 'locale');
+        $rawResult = parent::httpClient()->patch($uri, parent::getHttpHeadersV2($uri, $request, $options), $request->toJsonString());
+        return IyziLinkUpdateProductStatusMapper::create($rawResult)->jsonDecode()->mapIyziLinkUpdateProductStatus(new IyziLinkUpdateProductStatus());
+    }
+}
diff --git a/src/Iyzipay/Model/Mapper/BlacklistedCardMapper.php b/src/Iyzipay/Model/Mapper/BlacklistedCardMapper.php
new file mode 100644
index 00000000..48afe8c7
--- /dev/null
+++ b/src/Iyzipay/Model/Mapper/BlacklistedCardMapper.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Iyzipay\Model\Mapper;
+
+use Iyzipay\Model\BlacklistedCard;
+
+class BlacklistedCardMapper extends IyzipayResourceMapper {
+    public static function create($rawResult = null): BlacklistedCardMapper {
+        return new BlacklistedCardMapper($rawResult);
+    }
+
+    public function mapBlacklistedCardForm(BlacklistedCard $blacklistedCard, $jsonObject): BlacklistedCard {
+        parent::mapResourceFrom($blacklistedCard, $jsonObject);
+
+        if (isset($jsonObject->cardUserKey)) {
+            $blacklistedCard->setCardUserKey($jsonObject->cardUserKey);
+        }
+        if (isset($jsonObject->cardToken)) {
+            $blacklistedCard->setCardToken($jsonObject->cardToken);
+        }
+
+        return $blacklistedCard;
+    }
+
+    public function mapRetrieveBlacklistedCardForm(BlacklistedCard $blacklistedCard, $jsonObject): BlacklistedCard {
+        parent::mapResourceFrom($blacklistedCard, $jsonObject);
+
+        if (isset($jsonObject->cardNumber)) {
+            $blacklistedCard->setCardNumber(($jsonObject->cardNumber));
+        }
+        return $blacklistedCard;
+    }
+
+    public function mapBlacklistedCard(BlacklistedCard $blacklistedCard): BlacklistedCard {
+        return $this->mapBlacklistedCardForm($blacklistedCard, $this->jsonObject);
+    }
+
+    public function mapRetrieveBlacklistedCard(BlacklistedCard $blacklistedCard): BlacklistedCard {
+        return $this->mapRetrieveBlacklistedCardForm($blacklistedCard, $this->jsonObject);
+    }
+}
diff --git a/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkCreateFastLinkMapper.php b/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkCreateFastLinkMapper.php
new file mode 100644
index 00000000..aaf8ca71
--- /dev/null
+++ b/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkCreateFastLinkMapper.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Iyzipay\Model\Mapper\Iyzilink;
+
+use Iyzipay\Model\Mapper\IyzipayResourceMapper;
+use Iyzipay\Model\Iyzilink\IyziLinkFastLink;
+
+class IyziLinkCreateFastLinkMapper extends IyzipayResourceMapper {
+    public static function create($rawResult = null): IyziLinkCreateFastLinkMapper {
+        return new IyziLinkCreateFastLinkMapper($rawResult);
+    }
+
+    public function mapIyziLinkCreateFastLinkFrom(IyziLinkFastLink $iyzilinkFastLink, $jsonObjet): IyziLinkFastLink {
+        parent::mapResourceFrom($iyzilinkFastLink, $jsonObjet);
+
+        if (isset($jsonObjet->description)) {
+            $iyzilinkFastLink->setDescription(($jsonObjet->description));
+        }
+
+        if (isset($jsonObjet->price)) {
+            $iyzilinkFastLink->setPrice($jsonObjet->pricr);
+        }
+
+        if (isset($jsonObjet->currencyCode)) {
+            $iyzilinkFastLink->setCurrencyCode($jsonObjet->currencyCode);
+        }
+
+        if (isset($jsonObjet->sourceType)) {
+            $iyzilinkFastLink->setSourceType($jsonObjet->sourceType);
+        }
+
+        return $iyzilinkFastLink;
+    }
+
+    public function mapIyziLinkCreateFastLink(IyziLinkFastLink $iyziLinkFastLink): IyziLinkFastLink {
+        return $this->mapIyziLinkCreateFastLinkFrom($iyziLinkFastLink, $this->jsonObject);
+    }
+}
diff --git a/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkSearchMerchantProductsMapper.php b/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkSearchMerchantProductsMapper.php
new file mode 100644
index 00000000..0c2720b9
--- /dev/null
+++ b/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkSearchMerchantProductsMapper.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Iyzipay\Model\Mapper\Iyzilink;
+
+use Iyzipay\Model\Mapper\IyzipayResourceMapper;
+use Iyzipay\Model\Iyzilink\IyziLinkSearchMerchantProducts;
+
+class IyziLinkSearchMerchantProductsMapper extends IyzipayResourceMapper {
+    public static function create($rawResult = null): IyziLinkSearchMerchantProductsMapper {
+        return new IyziLinkSearchMerchantProductsMapper($rawResult);
+    }
+
+    public function mapIyziLinkSearchMerchantProductsFrom(IyziLinkSearchMerchantProducts $iyziLinkSearchMerchantProducts, object $jsonObject): IyziLinkSearchMerchantProducts {
+        parent::mapResourceFrom($iyziLinkSearchMerchantProducts, $jsonObject);
+
+        if (isset($jsonObject->page)) {
+            $iyziLinkSearchMerchantProducts->setPage($jsonObject->page);
+        }
+
+        if (isset($jsonObject->count)) {
+            $iyziLinkSearchMerchantProducts->setCount($jsonObject->count);
+        }
+
+        return $iyziLinkSearchMerchantProducts;
+    }
+
+    public function mapIyziLinkSearchMerchantProducts(IyziLinkSearchMerchantProducts $iyziLinkSearchMerchantProducts): IyziLinkSearchMerchantProducts {
+        return $this->mapIyziLinkSearchMerchantProductsFrom($iyziLinkSearchMerchantProducts, $this->jsonObject);
+    }
+}
diff --git a/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkUpdateProductStatusMapper.php b/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkUpdateProductStatusMapper.php
new file mode 100644
index 00000000..adc39b30
--- /dev/null
+++ b/src/Iyzipay/Model/Mapper/Iyzilink/IyziLinkUpdateProductStatusMapper.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Iyzipay\Model\Mapper\Iyzilink;
+
+use Iyzipay\Model\Mapper\IyzipayResourceMapper;
+use Iyzipay\Model\Iyzilink\IyziLinkUpdateProductStatus;
+
+class IyziLinkUpdateProductStatusMapper extends IyzipayResourceMapper {
+    public static function create($rawResult = null): IyziLinkUpdateProductStatusMapper {
+        return new IyziLinkUpdateProductStatusMapper($rawResult);
+    }
+
+    public function mapIyziLinkUpdateProductStatusFrom(IyziLinkUpdateProductStatus $iyziLinkUpdateProductStatus, $jsonObject): IyziLinkUpdateProductStatus {
+        parent::mapResourceFrom($iyziLinkUpdateProductStatus, $jsonObject);
+
+        if (isset($jsonObject->token)) {
+            $iyziLinkUpdateProductStatus->setToken($jsonObject->token);
+        }
+
+        if (isset($jsonObject->productStatus)) {
+            $iyziLinkUpdateProductStatus->setProductStatus($jsonObject->productStatus);
+        }
+
+        return $iyziLinkUpdateProductStatus;
+    }
+
+    public function mapIyziLinkUpdateProductStatus(IyziLinkUpdateProductStatus $iyziLinkUpdateProductStatus): IyziLinkUpdateProductStatus {
+        return $this->mapIyziLinkUpdateProductStatusFrom($iyziLinkUpdateProductStatus, $this->jsonObject);
+    }
+}
diff --git a/src/Iyzipay/Model/Status.php b/src/Iyzipay/Model/Status.php
index 0616a17e..9a05221f 100644
--- a/src/Iyzipay/Model/Status.php
+++ b/src/Iyzipay/Model/Status.php
@@ -2,8 +2,9 @@
 
 namespace Iyzipay\Model;
 
-class Status
-{
+class Status {
     const SUCCESS = "success";
     const FAILURE = "failure";
+    const ACTIVE = "ACTIVE";
+    const PASSIVE = "PASSIVE";
 }
\ No newline at end of file
diff --git a/src/Iyzipay/Request/CreateBlackListedCardRequest.php b/src/Iyzipay/Request/CreateBlackListedCardRequest.php
new file mode 100644
index 00000000..04d242eb
--- /dev/null
+++ b/src/Iyzipay/Request/CreateBlackListedCardRequest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Iyzipay\Request;
+
+use Iyzipay\JsonBuilder;
+use Iyzipay\Request;
+use Iyzipay\RequestStringBuilder;
+
+class CreateBlackListedCardRequest extends Request {
+    private string $cardUserKey = '';
+    private string $cardToken = '';
+
+    public function getCardUserKey(): string {
+        return $this->cardUserKey;
+    }
+
+    public function setCardUserKey($cardUserKey): void {
+        $this->cardUserKey = $cardUserKey;
+    }
+
+    public function getCardToken(): string {
+        return $this->cardToken;
+    }
+
+    public function setCardToken($cardToken): void {
+        $this->cardToken = $cardToken;
+    }
+
+    public function getJsonObject(): array {
+        return JsonBuilder::fromJsonObject(parent::getJsonObject())
+            ->add("cardToken", $this->getCardToken())
+            ->add("cardUserKey", $this->getCardUserKey())
+            ->getObject();
+    }
+
+    public function toPKIRequestString(): string {
+        return RequestStringBuilder::create()
+            ->appendSuper(parent::toPKIRequestString())
+            ->append("cardToken", $this->getCardToken())
+            ->append("cardUserKey", $this->getCardUserKey())
+            ->getRequestString();
+    }
+}
diff --git a/src/Iyzipay/Request/Iyzilink/IyziLinkCreateFastLinkRequest.php b/src/Iyzipay/Request/Iyzilink/IyziLinkCreateFastLinkRequest.php
new file mode 100644
index 00000000..084c2342
--- /dev/null
+++ b/src/Iyzipay/Request/Iyzilink/IyziLinkCreateFastLinkRequest.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Iyzipay\Request\Iyzilink;
+
+use Iyzipay\JsonBuilder;
+use Iyzipay\Request;
+
+class IyziLinkCreateFastLinkRequest extends Request {
+    private string $description;
+    private $price;
+    private string $currencyCode;
+    private string $sourceType;
+
+    public function getDescription(): string {
+        return $this->description;
+    }
+
+    public function setDescription(string $description): void {
+        $this->description = $description;
+    }
+
+    public function getPrice() {
+        return $this->price;
+    }
+
+    public function setPrice($price): void {
+        $this->price = $price;
+    }
+
+    public function getCurrencyCode(): string {
+        return $this->currencyCode;
+    }
+
+    public function setCurrencyCode(string $currencyCode): void {
+        $this->currencyCode = $currencyCode;
+    }
+
+    public function getSourceType(): string {
+        return $this->sourceType;
+    }
+
+    public function setSourceType(string $sourceType): void {
+        $this->sourceType = $sourceType;
+    }
+
+    public function getJsonObject() {
+        return JsonBuilder::fromJsonObject(parent::getJsonObject())
+            ->add('description', $this->getDescription())
+            ->addPrice('price', $this->getPrice())
+            ->add('currencyCode', $this->getCurrencyCode())
+            ->add('sourceType', $this->getSourceType())
+            ->getObject();
+    }
+}
diff --git a/src/Iyzipay/Request/Iyzilink/IyziLinkSaveProductRequest.php b/src/Iyzipay/Request/Iyzilink/IyziLinkSaveProductRequest.php
index 8c824ed7..e0d1b828 100644
--- a/src/Iyzipay/Request/Iyzilink/IyziLinkSaveProductRequest.php
+++ b/src/Iyzipay/Request/Iyzilink/IyziLinkSaveProductRequest.php
@@ -18,6 +18,9 @@ class IyziLinkSaveProductRequest extends Request
     private $token;
     private $url;
     private $imageUrl;
+    private $sourceType;
+    private $stockEnabled;
+    private $stockCount;
 
     public function getName()
     {
@@ -129,6 +132,36 @@ public function setImageUrl($imageUrl)
         $this->imageUrl = $imageUrl;
     }
 
+    public function getSourceType()
+    {
+        return $this->sourceType;
+    }
+
+    public function setSourceType($sourceType)
+    {
+        $this->sourceType = $sourceType;
+    }
+
+    public function getStockEnabled()
+    {
+        return $this->stockEnabled;
+    }
+
+    public function setStockEnabled($stockEnabled)
+    {
+        $this->stockEnabled = $stockEnabled;
+    }
+
+    public function getStockCount()
+    {
+        return $this->stockCount;
+    }
+
+    public function setStockCount($stockCount)
+    {
+        $this->stockCount = $stockCount;
+    }
+
     public function getJsonObject()
     {
         return JsonBuilder::fromJsonObject(parent::getJsonObject())
@@ -143,6 +176,9 @@ public function getJsonObject()
             ->add("token", $this->getToken())
             ->add("url", $this->getUrl())
             ->add("imageUrl", $this->getImageUrl())
+            ->add('sourceType', $this->getSourceType())
+            ->add('stockEnabled', $this->getStockEnabled())
+            ->add('stockCount', $this->getStockCount())
             ->getObject();
     }
 }
\ No newline at end of file
diff --git a/src/Iyzipay/Request/Iyzilink/IyziLinkSearchMerchantProductsRequest.php b/src/Iyzipay/Request/Iyzilink/IyziLinkSearchMerchantProductsRequest.php
new file mode 100644
index 00000000..3d7ceb20
--- /dev/null
+++ b/src/Iyzipay/Request/Iyzilink/IyziLinkSearchMerchantProductsRequest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Iyzipay\Request\Iyzilink;
+
+use Iyzipay\JsonBuilder;
+use Iyzipay\Request;
+use Iyzipay\RequestStringBuilder;
+
+class IyziLinkSearchMerchantProductsRequest extends Request {
+    private int $page;
+    private int $count;
+
+    public function getPage(): int {
+        return $this->page;
+    }
+
+    public function setPage(int $page): void {
+        $this->page = $page;
+    }
+
+    public function getCount(): int {
+        return $this->count;
+    }
+
+    public function setCount(int $count): void {
+        $this->count = $count;
+    }
+
+    public function getJsonObject() {
+        return JsonBuilder::fromJsonObject(parent::getJsonObject())
+            ->add('page', $this->getPage())
+            ->add('count', $this->getCount())
+            ->getObject();
+    }
+
+    public function toPKIRequestString(): RequestStringBuilder {
+        return RequestStringBuilder::create()
+            ->appendSuper(parent::toPKIRequestString())
+            ->append('page', $this->getPage())
+            ->append('count', $this->getCount())
+            ->getRequestString();
+    }
+}
diff --git a/src/Iyzipay/Request/Iyzilink/IyziLinkUpdateProductStatusRequest.php b/src/Iyzipay/Request/Iyzilink/IyziLinkUpdateProductStatusRequest.php
new file mode 100644
index 00000000..c97cebec
--- /dev/null
+++ b/src/Iyzipay/Request/Iyzilink/IyziLinkUpdateProductStatusRequest.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Iyzipay\Request\Iyzilink;
+
+use Iyzipay\JsonBuilder;
+use Iyzipay\Request;
+
+class IyziLinkUpdateProductStatusRequest extends Request {
+    private string $token;
+    private string $productStatus;
+
+    public function getToken(): string {
+        return $this->token;
+    }
+
+    public function setToken(string $token): void {
+        $this->token = $token;
+    }
+
+    public function getProductStatus(): string {
+        return $this->productStatus;
+    }
+
+    public function setProductStatus(string $productStatus): void {
+        $this->productStatus = $productStatus;
+    }
+
+    public function getJsonObject() {
+        return JsonBuilder::fromJsonObject(parent::getJsonObject())
+            ->add('token', $this->getToken())
+            ->add('productStatus', $this->getProductStatus())
+            ->getObject();
+    }
+}
\ No newline at end of file
diff --git a/src/Iyzipay/Request/RetrieveBlacklistedCardRequest.php b/src/Iyzipay/Request/RetrieveBlacklistedCardRequest.php
new file mode 100644
index 00000000..efbebb70
--- /dev/null
+++ b/src/Iyzipay/Request/RetrieveBlacklistedCardRequest.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Iyzipay\Request;
+
+use Iyzipay\JsonBuilder;
+use Iyzipay\Request;
+use Iyzipay\RequestStringBuilder;
+
+class RetrieveBlacklistedCardRequest extends Request {
+    private string $cardNumber = '';
+
+    public function getCardNumber(): string {
+        return $this->cardNumber;
+    }
+
+    public function setCardNumber(string $cardNumber): void {
+        $this->cardNumber = $cardNumber;
+    }
+
+    public function getJsonObject(): array {
+        return JsonBuilder::fromJsonObject(parent::getJsonObject())
+            ->add("cardNumber", $this->getCardNumber())
+            ->getObject();
+    }
+
+    public function toPKIRequestString(): string {
+        return RequestStringBuilder::create()
+            ->appendSuper(parent::toPKIRequestString())
+            ->append("cardNumber", $this->getCardNumber())
+            ->getRequestString();
+    }
+}
\ No newline at end of file
diff --git a/src/Iyzipay/Request/UpdateBlackListedCardRequest.php b/src/Iyzipay/Request/UpdateBlackListedCardRequest.php
new file mode 100644
index 00000000..45801c18
--- /dev/null
+++ b/src/Iyzipay/Request/UpdateBlackListedCardRequest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Iyzipay\Request;
+
+use Iyzipay\JsonBuilder;
+use \Iyzipay\Request;
+use Iyzipay\RequestStringBuilder;
+
+class UpdateBlackListedCardRequest extends Request {
+    private string $cardUserKey = '';
+    private string $cardToken = '';
+
+    public function getCardUserKey(): string {
+        return $this->cardUserKey;
+    }
+
+    public function setCardUserKey($cardUserKey): void {
+        $this->cardUserKey = $cardUserKey;
+    }
+
+    public function getCardToken(): string {
+        return $this->cardToken;
+    }
+
+    public function setCardToken($cardToken): void {
+        $this->cardToken = $cardToken;
+    }
+
+    public function getJsonObject(): array {
+        return JsonBuilder::fromJsonObject(parent::getJsonObject())
+            ->add("cardToken", $this->getCardToken())
+            ->add("cardUserKey", $this->getCardUserKey())
+            ->getObject();
+    }
+
+    public function toPKIRequestString(): string {
+        return RequestStringBuilder::create()
+            ->appendSuper(parent::toPKIRequestString())
+            ->append("cardToken", $this->getCardToken())
+            ->append("cardUserKey", $this->getCardUserKey())
+            ->getRequestString();
+    }
+}
diff --git a/src/Iyzipay/RequestStringBuilder.php b/src/Iyzipay/RequestStringBuilder.php
index 13682a77..784f1102 100644
--- a/src/Iyzipay/RequestStringBuilder.php
+++ b/src/Iyzipay/RequestStringBuilder.php
@@ -139,7 +139,6 @@ public function getRequestString()
 
     public static function requestToStringQuery(Request $request, $type = null)
     {
-
         $stringQuery = false;
 
         if($request->getConversationId()) {
@@ -150,6 +149,10 @@ public static function requestToStringQuery(Request $request, $type = null)
             $stringQuery .= "&locale=" . $request->getLocale();
         }
 
+        if ($type == 'locale') {
+            $stringQuery = "?locale=" . $request->getLocale();
+        }
+
         if($type == 'defaultParams' ) {
             if($request->getConversationId()) {
                 $stringQuery = "?conversationId=" . $request->getConversationId();
diff --git a/tests/Iyzipay/Tests/IyzipayResourceTestCase.php b/tests/Iyzipay/Tests/IyzipayResourceTestCase.php
index f3bca767..a3f1bd8a 100644
--- a/tests/Iyzipay/Tests/IyzipayResourceTestCase.php
+++ b/tests/Iyzipay/Tests/IyzipayResourceTestCase.php
@@ -21,7 +21,7 @@ class IyzipayResourceTestCase extends TestCase
             "conversationId":"123456"
         }';
 
-    public function setUp()
+    public function setUp(): void
     {
         parent::setUp();
 
@@ -83,4 +83,4 @@ public function test_should_check_http_client_not_empty()
     {
         $this->assertNotEmpty($this->httpClient);
     }
-}
\ No newline at end of file
+}
diff --git a/tests/Iyzipay/Tests/Model/BlacklistedCardTest.php b/tests/Iyzipay/Tests/Model/BlacklistedCardTest.php
new file mode 100644
index 00000000..9dcbd0c8
--- /dev/null
+++ b/tests/Iyzipay/Tests/Model/BlacklistedCardTest.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Iyzipay\Tests\Model;
+
+use Iyzipay\Model\BlacklistedCard;
+use Iyzipay\Request\CreateBlackListedCardRequest;
+use Iyzipay\Request\RetrieveBlacklistedCardRequest;
+use Iyzipay\Request\UpdateBlackListedCardRequest;
+use Iyzipay\Tests\IyzipayResourceTestCase;
+
+class BlacklistedCardTest extends IyzipayResourceTestCase {
+    public function test_should_create_blacklisted_card() {
+        $this->expectHttpPost();
+        $blacklistedCard = BlacklistedCard::create(new CreateBlackListedCardRequest(), $this->options);
+        $this->verifyResource($blacklistedCard);
+    }
+
+    public function test_should_retrieve_blacklisted_card() {
+        $this->expectHttpPost();
+        $blacklistedCard = BlacklistedCard::retrieve(new RetrieveBlacklistedCardRequest(), $this->options);
+        $this->verifyResource($blacklistedCard);
+    }
+
+    public function test_should_update_blacklisted_card() {
+        $this->expectHttpPost();
+        $blacklistedCard = BlacklistedCard::update(new UpdateBlackListedCardRequest(), $this->options);
+        $this->verifyResource($blacklistedCard);
+    }
+}
diff --git a/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkCreateFastLinkTest.php b/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkCreateFastLinkTest.php
new file mode 100644
index 00000000..e2a476cd
--- /dev/null
+++ b/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkCreateFastLinkTest.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Iyzipay\Tests\Model\Iyzilink;
+
+use Iyzipay\Model\Iyzilink\IyziLinkFastLink;
+use Iyzipay\Request\Iyzilink\IyziLinkCreateFastLinkRequest;
+use Iyzipay\Tests\IyzipayResourceTestCase;
+
+class IyziLinkCreateFastLinkTest extends IyzipayResourceTestCase {
+    public function test_should_create_fast_link() {
+        $request = new IyziLinkCreateFastLinkRequest();
+        $request->setLocale(\Iyzipay\Model\Locale::TR);
+        $request->setConversationId("123456789");
+        $request->setDescription("ft-description-fast-link");
+        $request->setPrice(10);
+        $request->setCurrencyCode("TRY");
+        $request->setSourceType("WEB");
+
+        $this->expectHttpPost();
+        $fastLink = IyziLinkFastLink::create($request, $this->options);
+        $this->verifyResource($fastLink);
+    }
+}
diff --git a/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkSearchMerchantProductsTest.php b/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkSearchMerchantProductsTest.php
new file mode 100644
index 00000000..4d5e0a55
--- /dev/null
+++ b/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkSearchMerchantProductsTest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Iyzipay\Tests\Model\Iyzilink;
+
+use Iyzipay\Model\Iyzilink\IyziLinkSearchMerchantProducts;
+use Iyzipay\Request\Iyzilink\IyziLinkSearchMerchantProductsRequest;
+use Iyzipay\Tests\IyzipayResourceTestCase;
+
+class IyziLinkSearchMerchantProductsTest extends IyzipayResourceTestCase {
+    public function testShouldSearchMerchantProducts(): void {
+        $request = new IyziLinkSearchMerchantProductsRequest();
+        $request->setLocale(\Iyzipay\Model\Locale::TR);
+        $request->setConversationId('123456');
+        $request->setPage(1);
+        $request->setCount(10);
+
+        $this->expectHttpGetV2();
+        $iyziLinkSearchMerchantProducts = IyziLinkSearchMerchantProducts::create($request, $this->options);
+        $this->verifyResource($iyziLinkSearchMerchantProducts);
+    }
+}
diff --git a/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkUpdateProductStatusTest.php b/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkUpdateProductStatusTest.php
new file mode 100644
index 00000000..fabd0c8d
--- /dev/null
+++ b/tests/Iyzipay/Tests/Model/Iyzilink/IyziLinkUpdateProductStatusTest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Iyzipay\Tests\Model\Iyzilink;
+
+use Iyzipay\Model\Status;
+use Iyzipay\Model\Iyzilink\IyziLinkUpdateProductStatus;
+use Iyzipay\Request\Iyzilink\IyziLinkUpdateProductStatusRequest;
+use Iyzipay\Tests\IyzipayResourceTestCase;
+
+class IyziLinkUpdateProductStatusTest extends IyzipayResourceTestCase {
+    public function testShouldUpdateProductStatus(): void {
+        $request = new IyziLinkUpdateProductStatusRequest();
+        $request->setLocale(\Iyzipay\Model\Locale::TR);
+        $request->setToken('AAM');
+        $request->setProductStatus(Status::PASSIVE);
+
+        $this->expectHttpPut();
+        $iyziLinkUpdateProductStatus = IyziLinkUpdateProductStatus::create($request, $this->options);
+        $this->verifyResource($iyziLinkUpdateProductStatus);
+    }
+}
diff --git a/tests/Iyzipay/Tests/Model/Mapper/BlacklistedCardMapperTest.php b/tests/Iyzipay/Tests/Model/Mapper/BlacklistedCardMapperTest.php
new file mode 100644
index 00000000..d67a95e8
--- /dev/null
+++ b/tests/Iyzipay/Tests/Model/Mapper/BlacklistedCardMapperTest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Iyzipay\Tests\Model\Mapper;
+
+use Iyzipay\Model\BlacklistedCard;
+use Iyzipay\Model\Locale;
+use Iyzipay\Model\Mapper\BlacklistedCardMapper;
+use Iyzipay\Model\Status;
+use Iyzipay\Tests\TestCase;
+
+class BlacklistedCardMapperTest extends TestCase {
+    public function test_should_map_blacklisted_card() {
+        $json = $this->retrieveJsonFile('blacklisted-card.json');
+
+        $blacklistedCard = BlacklistedCardMapper::create($json)->jsonDecode()->mapBlacklistedCard(new BlacklistedCard());
+
+        $this->assertNotEmpty($blacklistedCard);
+        $this->assertEquals(Status::FAILURE, $blacklistedCard->getStatus());
+        $this->assertEquals("123456", $blacklistedCard->getConversationId());
+        $this->assertEquals("10000", $blacklistedCard->getErrorCode());
+        $this->assertEquals("error message", $blacklistedCard->getErrorMessage());
+        $this->assertEquals("ERROR_GROUP", $blacklistedCard->getErrorGroup());
+        $this->assertEquals(Locale::TR, $blacklistedCard->getLocale());
+        $this->assertEquals("1458545234852", $blacklistedCard->getSystemTime());
+        $this->assertEquals("cardUserKey", $blacklistedCard->getCardUserKey());
+        $this->assertEquals("cardToken", $blacklistedCard->getCardToken());
+    }
+
+    public function test_should_map_retrieve_blacklisted_card() {
+        $json = $this->retrieveJsonFile('retrieve-blacklisted-card.json');
+
+        $blacklistedCard = BlacklistedCardMapper::create($json)->jsonDecode()->mapRetrieveBlacklistedCard(new BlacklistedCard());
+
+        $this->assertEquals(Status::FAILURE, $blacklistedCard->getStatus());
+        $this->assertEquals("123456", $blacklistedCard->getConversationId());
+        $this->assertEquals("10000", $blacklistedCard->getErrorCode());
+        $this->assertEquals("error message", $blacklistedCard->getErrorMessage());
+        $this->assertEquals("ERROR_GROUP", $blacklistedCard->getErrorGroup());
+        $this->assertEquals(Locale::TR, $blacklistedCard->getLocale());
+        $this->assertEquals("1458545234852", $blacklistedCard->getSystemTime());
+        $this->assertEquals("cardNumber", $blacklistedCard->getCardNumber());
+    }
+}
diff --git a/tests/Iyzipay/Tests/Model/Mapper/Iyzilink/IyziLinkUpdateProductStatusMapperTest.php b/tests/Iyzipay/Tests/Model/Mapper/Iyzilink/IyziLinkUpdateProductStatusMapperTest.php
new file mode 100644
index 00000000..28dea879
--- /dev/null
+++ b/tests/Iyzipay/Tests/Model/Mapper/Iyzilink/IyziLinkUpdateProductStatusMapperTest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Iyzipay\Tests\Model\Mapper\Iyzilink;
+
+use Iyzipay\Model\Locale;
+use Iyzipay\Model\Status;
+use Iyzipay\Model\Iyzilink\IyziLinkUpdateProductStatus;
+use Iyzipay\Model\Mapper\Iyzilink\IyziLinkUpdateProductStatusMapper;
+use Iyzipay\Tests\TestCase;
+
+class IyziLinkUpdateProductStatusMapperTest extends TestCase {
+    public function testShouldMapIyziLinkUpdateProductStatusCreate(): void {
+        $json = $this->retrieveJsonFile("iyzilink-update-product-status.json");
+        $iyziLinkUpdateProductStatus = IyziLinkUpdateProductStatusMapper::create($json)->jsonDecode()->mapIyziLinkUpdateProductStatus(new IyziLinkUpdateProductStatus());
+
+        $this->assertNotEmpty($iyziLinkUpdateProductStatus);
+        $this->assertEquals(Status::SUCCESS, $iyziLinkUpdateProductStatus->getStatus());
+        $this->assertEquals(Locale::TR, $iyziLinkUpdateProductStatus->getLocale());
+        $this->assertEquals(1710349430773, $iyziLinkUpdateProductStatus->getSystemTime());
+    }
+}
diff --git a/tests/Iyzipay/Tests/Request/CreateBlacklistedCardRequestTest.php b/tests/Iyzipay/Tests/Request/CreateBlacklistedCardRequestTest.php
new file mode 100644
index 00000000..27c825bd
--- /dev/null
+++ b/tests/Iyzipay/Tests/Request/CreateBlacklistedCardRequestTest.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Iyzipay\Tests\Request;
+
+use Iyzipay\Model\Locale;
+use Iyzipay\Request\CreateBlackListedCardRequest;
+use Iyzipay\Tests\TestCase;
+
+class CreateBlacklistedCardRequestTest extends TestCase {
+    public function test_should_get_json_object() {
+        $request = $this->prepareRequest();
+        $jsonObject = $request->getJsonObject();
+
+        $this->assertEquals(Locale::TR, $jsonObject["locale"]);
+        $this->assertEquals("123456789", $jsonObject["conversationId"]);
+        $this->assertEquals("card user key", $jsonObject["cardUserKey"]);
+        $this->assertEquals("card token", $jsonObject["cardToken"]);
+    }
+
+    public function test_should_convert_to_pki_request_string(): void {
+        $request = $this->prepareRequest();
+
+        $str = "[locale=tr," .
+            "conversationId=123456789," .
+            "cardUserKey=card user key," .
+            "cardToken=card token]";
+
+        $this->assertEquals($str, $request->toPKIRequestString());
+    }
+
+    public function test_should_get_json_string(): void {
+        $request = $this->prepareRequest();
+
+        $json = '
+            {
+                "locale":"tr",
+                "conversationId":"123456789",
+                "cardToken":"card token",
+                "cardUserKey":"card user key"
+            }';
+
+        $this->assertJson($request->toJsonString());
+        $this->assertJsonStringEqualsJsonString($json, $request->toJsonString());
+    }
+
+    private function prepareRequest(): CreateBlackListedCardRequest {
+        $request = new CreateBlackListedCardRequest();
+        $request->setLocale(Locale::TR);
+        $request->setConversationId("123456789");
+        $request->setCardUserKey("card user key");
+        $request->setCardToken("card token");
+        return $request;
+    }
+}
diff --git a/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkCreateFastLinkRequestTest.php b/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkCreateFastLinkRequestTest.php
new file mode 100644
index 00000000..4f8d134b
--- /dev/null
+++ b/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkCreateFastLinkRequestTest.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Iyzipay\Tests\Request\Iyzilink;
+
+use Iyzipay\Model\Currency;
+use Iyzipay\Tests\TestCase;
+use Iyzipay\Request\Iyzilink\IyziLinkCreateFastLinkRequest;
+use Iyzipay\Model\Locale;
+
+class IyziLinkCreateFastLinkRequestTest extends TestCase {
+
+    public function test_should_save_fastlink_request_object(): void {
+        $request = $this->prepareRequest();
+        $jsonObject = $request->getJsonObject();
+
+        $this->assertEquals(Locale::TR, $jsonObject["locale"]);
+        $this->assertEquals("123456789", $jsonObject["conversationId"]);
+        $this->assertEquals("ft-description-fast-link", $jsonObject["description"]);
+        $this->assertEquals(10, $jsonObject["price"]);
+        $this->assertEquals(Currency::TL, $jsonObject["currencyCode"]);
+        $this->assertEquals("WEB", $jsonObject["sourceType"]);
+    }
+
+    public function prepareRequest(): IyziLinkCreateFastLinkRequest {
+        $request = new IyziLinkCreateFastLinkRequest();
+        $request->setLocale(Locale::TR);
+        $request->setConversationId("123456789");
+        $request->setDescription("ft-description-fast-link");
+        $request->setPrice(10);
+        $request->setCurrencyCode("TRY");
+        $request->setSourceType("WEB");
+
+        return $request;
+    }
+}
diff --git a/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkSaveRequestProductTest.php b/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkSaveRequestProductTest.php
index 367ce4e9..0942b41d 100644
--- a/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkSaveRequestProductTest.php
+++ b/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkSaveRequestProductTest.php
@@ -2,7 +2,7 @@
 namespace Iyzipay\Tests\Request\Iyzilink;
 
 use Iyzipay\Tests\TestCase;
-use IyziPay\Request\Iyzilink\IyziLinkSaveProductRequest;
+use Iyzipay\Request\Iyzilink\IyziLinkSaveProductRequest;
 use Iyzipay\Model\Locale;
 use Iyzipay\Model\Currency;
 use Iyzipay\FileBase64Encoder;
@@ -28,6 +28,9 @@ public function test_should_save_request_object()
         $this->assertEquals("test", $jsonObject["token"]);
         $this->assertEquals("test", $jsonObject["url"]);
         $this->assertEquals("test", $jsonObject["imageUrl"]);
+        $this->assertEquals("API", $jsonObject['sourceType']);
+        $this->assertTrue($jsonObject['stockEnabled']);
+        $this->assertEquals(1, $jsonObject['stockCount']);
     }
 
 
@@ -48,6 +51,9 @@ private function prepareRequest()
         $request->setToken('test');
         $request->setUrl('test');
         $request->setImageUrl('test');
+        $request->setSourceType('API');
+        $request->setStockEnabled(true);
+        $request->setStockCount(1);
 
         return $request;
     }
diff --git a/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkSearchMerchantProductsRequestTest.php b/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkSearchMerchantProductsRequestTest.php
new file mode 100644
index 00000000..15bea67e
--- /dev/null
+++ b/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkSearchMerchantProductsRequestTest.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Iyzipay\Tests\Request\Iyzilink;
+
+use Iyzipay\Model\Status;
+use Iyzipay\Model\Locale;
+use Iyzipay\Tests\TestCase;
+use Iyzipay\Request\Iyzilink\IyziLinkSearchMerchantProductsRequest;
+
+class IyziLinkSearchMerchantProductsRequestTest extends TestCase {
+    public function testShouldCreateIyziLinkSearchMerchantProductsRequest(): void {
+        $request = $this->prepareRequest();
+        $jsonObject = $request->getJsonObject();
+
+        $this->assertEquals(Locale::TR, $jsonObject["locale"]);
+        $this->assertEquals(1, $jsonObject['page']);
+        $this->assertEquals(10, $jsonObject['count']);
+    }
+
+    public function prepareRequest(): IyziLinkSearchMerchantProductsRequest {
+        $request = new IyziLinkSearchMerchantProductsRequest();
+        $request->setLocale(Locale::TR);
+        $request->setConversationId('123456');
+        $request->setPage(1);
+        $request->setCount(10);
+
+        return $request;
+    }
+}
diff --git a/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkUpdateProductStatusRequestTest.php b/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkUpdateProductStatusRequestTest.php
new file mode 100644
index 00000000..2bdf273e
--- /dev/null
+++ b/tests/Iyzipay/Tests/Request/Iyzilink/IyziLinkUpdateProductStatusRequestTest.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace Iyzipay\Tests\Request\Iyzilink;
+
+use Iyzipay\Model\Status;
+use Iyzipay\Model\Locale;
+use Iyzipay\Tests\TestCase;
+use Iyzipay\Request\Iyzilink\IyziLinkUpdateProductStatusRequest;
+
+class IyziLinkUpdateProductStatusRequestTest extends TestCase {
+    public function testShouldUpdateProductStatus(): void {
+        $request = $this->prepareRequest();
+        $jsonObject = $request->getJsonObject();
+
+        $this->assertEquals(Locale::TR, $jsonObject["locale"]);
+        $this->assertEquals("AAM", $jsonObject["token"]);
+        $this->assertEquals(Status::PASSIVE, $jsonObject['productStatus']);
+    }
+
+    public function prepareRequest(): IyziLinkUpdateProductStatusRequest {
+        $request = new IyziLinkUpdateProductStatusRequest();
+        $request->setLocale(Locale::TR);
+        $request->setToken('AAM');
+        $request->setProductStatus(Status::PASSIVE);
+
+        return $request;
+    }
+}
diff --git a/tests/Iyzipay/Tests/Request/RetrieveBlacklistedCardRequestTest.php b/tests/Iyzipay/Tests/Request/RetrieveBlacklistedCardRequestTest.php
new file mode 100644
index 00000000..91c11b7e
--- /dev/null
+++ b/tests/Iyzipay/Tests/Request/RetrieveBlacklistedCardRequestTest.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Iyzipay\Tests\Request;
+
+use Iyzipay\Model\Locale;
+use Iyzipay\Request\RetrieveBlacklistedCardRequest;
+use Iyzipay\Tests\TestCase;
+
+class RetrieveBlacklistedCardRequestTest extends TestCase {
+    public function test_should_get_json_object() {
+        $request = $this->prepareRequest();
+        $jsonObject = $request->getJsonObject();
+
+        $this->assertEquals(Locale::TR, $jsonObject["locale"]);
+        $this->assertEquals("123456789", $jsonObject["conversationId"]);
+        $this->assertEquals("card number", $jsonObject["cardNumber"]);
+    }
+
+    public function test_should_convert_to_pki_request_string() {
+        $request = $this->prepareRequest();
+
+        $str = "[locale=tr," .
+            "conversationId=123456789," .
+            "cardNumber=card number]";
+
+        $this->assertEquals($str, $request->toPKIRequestString());
+    }
+
+    public function test_should_get_json_string() {
+        $request = $this->prepareRequest();
+
+        $json = '
+            {
+                "locale":"tr",
+                "conversationId":"123456789",
+                "cardNumber":"card number"
+            }';
+
+        $this->assertJson($request->toJsonString());
+        $this->assertJsonStringEqualsJsonString($json, $request->toJsonString());
+    }
+
+    private function prepareRequest(): RetrieveBlacklistedCardRequest {
+        $request = new RetrieveBlacklistedCardRequest();
+        $request->setLocale(Locale::TR);
+        $request->setConversationId("123456789");
+        $request->setCardNumber("card number");
+        return $request;
+    }
+}
diff --git a/tests/Iyzipay/Tests/Request/UpdateBlacklistedCardRequestTest.php b/tests/Iyzipay/Tests/Request/UpdateBlacklistedCardRequestTest.php
new file mode 100644
index 00000000..f05046bb
--- /dev/null
+++ b/tests/Iyzipay/Tests/Request/UpdateBlacklistedCardRequestTest.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Iyzipay\Tests\Request;
+
+use Iyzipay\Model\Locale;
+use Iyzipay\Request\UpdateBlackListedCardRequest;
+use Iyzipay\Tests\TestCase;
+
+class UpdateBlacklistedCardRequestTest extends TestCase {
+    public function test_should_get_json_object() {
+        $request = $this->prepareRequest();
+        $jsonObject = $request->getJsonObject();
+
+        $this->assertEquals(Locale::TR, $jsonObject["locale"]);
+        $this->assertEquals("123456789", $jsonObject["conversationId"]);
+        $this->assertEquals("card user key", $jsonObject["cardUserKey"]);
+        $this->assertEquals("card token", $jsonObject["cardToken"]);
+    }
+
+    public function test_should_convert_to_pki_request_string(): void {
+        $request = $this->prepareRequest();
+
+        $str = "[locale=tr," .
+            "conversationId=123456789," .
+            "cardUserKey=card user key," .
+            "cardToken=card token]";
+
+        $this->assertEquals($str, $request->toPKIRequestString());
+    }
+
+    public function test_should_get_json_string(): void {
+        $request = $this->prepareRequest();
+
+        $json = '
+            {
+                "locale":"tr",
+                "conversationId":"123456789",
+                "cardToken":"card token",
+                "cardUserKey":"card user key"
+            }';
+
+        $this->assertJson($request->toJsonString());
+        $this->assertJsonStringEqualsJsonString($json, $request->toJsonString());
+    }
+
+    private function prepareRequest(): UpdateBlackListedCardRequest {
+        $request = new UpdateBlackListedCardRequest();
+        $request->setLocale(Locale::TR);
+        $request->setConversationId("123456789");
+        $request->setCardUserKey("card user key");
+        $request->setCardToken("card token");
+        return $request;
+    }
+}
diff --git a/tests/Iyzipay/Tests/TestCase.php b/tests/Iyzipay/Tests/TestCase.php
index d094c4de..cd62f6e3 100644
--- a/tests/Iyzipay/Tests/TestCase.php
+++ b/tests/Iyzipay/Tests/TestCase.php
@@ -2,13 +2,14 @@
 
 namespace Iyzipay\Tests;
 
+use PHPUnit\Framework\TestCase as BaseTestCase;
 use Iyzipay\Options;
 
-class TestCase extends \PHPUnit_Framework_TestCase
+class TestCase extends BaseTestCase
 {
     protected $options;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->options = new Options();
         $this->options->setApiKey("apiKey");
@@ -33,4 +34,4 @@ public function retrieveJsonFile($file)
     {
         return file_get_contents(__DIR__ . '/mock/' . $file, true);
     }
-}
\ No newline at end of file
+}
diff --git a/tests/Iyzipay/Tests/mock/blacklisted-card.json b/tests/Iyzipay/Tests/mock/blacklisted-card.json
new file mode 100644
index 00000000..8261b86a
--- /dev/null
+++ b/tests/Iyzipay/Tests/mock/blacklisted-card.json
@@ -0,0 +1,12 @@
+{
+  "status": "failure",
+  "errorCode": 10000,
+  "errorMessage": "error message",
+  "errorGroup": "ERROR_GROUP",
+  "locale": "tr",
+  "systemTime": "1458545234852",
+  "conversationId": "123456",
+  "cardUserKey": "cardUserKey",
+  "cardToken": "cardToken",
+  "cardNumber": "cardNumber"
+}
\ No newline at end of file
diff --git a/tests/Iyzipay/Tests/mock/iyzilink.update-product-status.json b/tests/Iyzipay/Tests/mock/iyzilink.update-product-status.json
new file mode 100644
index 00000000..6bf40b51
--- /dev/null
+++ b/tests/Iyzipay/Tests/mock/iyzilink.update-product-status.json
@@ -0,0 +1,5 @@
+{
+  "status": "success",
+  "locale": "tr",
+  "systemTime": "1710349430773"
+}
\ No newline at end of file
diff --git a/tests/Iyzipay/Tests/mock/retrieve-blacklisted-card.json b/tests/Iyzipay/Tests/mock/retrieve-blacklisted-card.json
new file mode 100644
index 00000000..95bf5f09
--- /dev/null
+++ b/tests/Iyzipay/Tests/mock/retrieve-blacklisted-card.json
@@ -0,0 +1,10 @@
+{
+  "status": "failure",
+  "errorCode": 10000,
+  "errorMessage": "error message",
+  "errorGroup": "ERROR_GROUP",
+  "locale": "tr",
+  "systemTime": "1458545234852",
+  "conversationId": "123456",
+  "cardNumber": "cardNumber"
+}