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/subscription-samples/delete_customer.php b/samples/subscription-samples/delete_customer.php
new file mode 100644
index 00000000..71cd8747
--- /dev/null
+++ b/samples/subscription-samples/delete_customer.php
@@ -0,0 +1,12 @@
+<?php
+
+require dirname(__DIR__) . '/config.php';
+
+function deleteSubscriptionCustomer(): void {
+    $request = new \Iyzipay\Request\Subscription\SubscriptionDeleteCustomerRequest();
+    $request->setCustomerReferenceCode('566b2e1a-5046-4438-9b62-c8cf761f61d1');
+    $result = \Iyzipay\Model\Subscription\SubscriptionDeleteCustomer::delete($request, Config::options());
+    print_r($result);
+}
+
+deleteSubscriptionCustomer();
diff --git a/samples/subscription-samples/subscription_list.php b/samples/subscription-samples/subscription_list.php
new file mode 100644
index 00000000..e06dbe5c
--- /dev/null
+++ b/samples/subscription-samples/subscription_list.php
@@ -0,0 +1,22 @@
+<?php
+
+require dirname(__DIR__) . '/config.php';
+
+function subscriptionList(): void {
+    $request = new \Iyzipay\Request\Subscription\SubscriptionListRequest();
+
+    $request->setPage(1);
+    $request->setCount(10);
+    $request->setSubscriptionStatus(\Iyzipay\Model\Status::ACTIVE);
+    $request->setSubscriptionReferenceCode('c8ab43da-f4b3-40d2-b1ef-620da93ec3e9');
+    $request->setCustomerReferenceCode('566b2e1a-5046-4438-9b62-c8cf761f61d1');
+    $request->setPricingPlanReferenceCode('c1d489b6-9adc-42fa-88ae-47ea2e5dbe1e');
+    $request->setParentReferenceCode('f219267d-ce05-4039-a773-225ea44aacd1');
+    $request->setStartDate('2024-01-01 23:56:00');
+    $request->setEndDate('2024-02-02 23:56:00');
+
+    $result = \Iyzipay\Model\Subscription\SubscriptionList::create($request, Config::options());
+    print_r($result);
+}
+
+subscriptionList();
diff --git a/src/Iyzipay/DefaultHttpClient.php b/src/Iyzipay/DefaultHttpClient.php
index cab25812..08d159b2 100644
--- a/src/Iyzipay/DefaultHttpClient.php
+++ b/src/Iyzipay/DefaultHttpClient.php
@@ -65,6 +65,18 @@ public function put($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 $header;
diff --git a/src/Iyzipay/Model/Mapper/Subscription/SubscriptionDeleteCustomerMapper.php b/src/Iyzipay/Model/Mapper/Subscription/SubscriptionDeleteCustomerMapper.php
new file mode 100644
index 00000000..92a76114
--- /dev/null
+++ b/src/Iyzipay/Model/Mapper/Subscription/SubscriptionDeleteCustomerMapper.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace Iyzipay\Model\Mapper\Subscription;
+
+use Iyzipay\Model\Mapper\IyzipayResourceMapper;
+use Iyzipay\Model\Subscription\SubscriptionDeleteCustomer;
+
+class SubscriptionDeleteCustomerMapper extends IyzipayResourceMapper {
+    public static function create($rawResult = null) {
+        return new SubscriptionDeleteCustomerMapper($rawResult);
+    }
+
+    public function mapSubscriptionDeleteCustomerFrom(SubscriptionDeleteCustomer $customer, object $jsonObject): SubscriptionDeleteCustomer {
+        parent::mapResourceFrom($customer, $jsonObject);
+
+        if (isset($jsonObject->customerReferenceCode)) {
+            $customer->setCustomerReferenceCode($jsonObject->customerReferenceCode);
+        }
+
+        return $customer;
+    }
+
+    public function mapSubscriptionDeleteCustomer(SubscriptionDeleteCustomer $customer): SubscriptionDeleteCustomer {
+        return $this->mapSubscriptionDeleteCustomerFrom($customer, $this->jsonObject);
+    }
+}
+
+
diff --git a/src/Iyzipay/Model/Mapper/Subscription/SubscriptionListMapper.php b/src/Iyzipay/Model/Mapper/Subscription/SubscriptionListMapper.php
new file mode 100644
index 00000000..13f203e7
--- /dev/null
+++ b/src/Iyzipay/Model/Mapper/Subscription/SubscriptionListMapper.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Iyzipay\Model\Mapper\Subscription;
+
+use Iyzipay\Model\Mapper\IyzipayResourceMapper;
+use Iyzipay\Model\Subscription\SubscriptionList;
+
+class SubscriptionListMapper extends IyzipayResourceMapper {
+    public static function create($rawResult = null): SubscriptionListMapper {
+        return new SubscriptionListMapper($rawResult);
+    }
+
+    public function mapSubscriptionListFrom(SubscriptionList $subscriptionList, object $jsonObject): \Iyzipay\Model\Subscription\SubscriptionList {
+        parent::mapResourceFrom($subscriptionList, $jsonObject);
+
+        if (isset($jsonObject->subscriptionReferenceCode)) {
+            $subscriptionList->setSubscriptionReferenceCode($jsonObject->subscriptionReferenceCode);
+        }
+
+        if (isset($jsonObject->subscriptionStatus)) {
+            $subscriptionList->setSubscriptionStatus($jsonObject->subscriptionStatus);
+        }
+
+        if (isset($jsonObject->page)) {
+            $subscriptionList->setPage($jsonObject->page);
+        }
+
+        if (isset($jsonObject->count)) {
+            $subscriptionList->setCount($jsonObject->count);
+        }
+
+        if (isset($jsonObject->customerReferenceCode)) {
+            $subscriptionList->setCustomerReferenceCode($jsonObject->customerReferenceCode);
+        }
+
+        if (isset($jsonObject->parentReferenceCode)) {
+            $subscriptionList->setParentReferenceCode($jsonObject->parentReferenceCode);
+        }
+
+        if (isset($jsonObject->startDate)) {
+            $subscriptionList->setStartDate($jsonObject->startDate);
+        }
+
+        if (isset($jsonObject->endDate)) {
+            $subscriptionList->setEndDate($jsonObject->endDate);
+        }
+
+        if (isset($jsonObject->pricingPlanReferenceCode)) {
+            $subscriptionList->setPricingPlanReferenceCode($jsonObject->pricingPlanReferenceCode);
+        }
+
+        return $subscriptionList;
+    }
+
+    public function mapSubscriptionList(SubscriptionList $subscriptionList): \Iyzipay\Model\Subscription\SubscriptionList {
+        return $this->mapSubscriptionListFrom($subscriptionList, $this->jsonObject);
+    }
+}
diff --git a/src/Iyzipay/Model/Status.php b/src/Iyzipay/Model/Status.php
index 0616a17e..36a2c1ca 100644
--- a/src/Iyzipay/Model/Status.php
+++ b/src/Iyzipay/Model/Status.php
@@ -6,4 +6,6 @@ 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/Model/Subscription/SubscriptionDeleteCustomer.php b/src/Iyzipay/Model/Subscription/SubscriptionDeleteCustomer.php
new file mode 100644
index 00000000..9af701d0
--- /dev/null
+++ b/src/Iyzipay/Model/Subscription/SubscriptionDeleteCustomer.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace Iyzipay\Model\Subscription;
+
+use Iyzipay\Options;
+use Iyzipay\IyzipayResource;
+use Iyzipay\RequestStringBuilder;
+use Iyzipay\Model\Mapper\Subscription\SubscriptionDeleteCustomerMapper;
+use Iyzipay\Request\Subscription\SubscriptionDeleteCustomerRequest;
+
+class SubscriptionDeleteCustomer extends IyzipayResource {
+    private string $customerReferenceCode;
+
+    public static function delete(SubscriptionDeleteCustomerRequest $request, Options $options) {
+        $uri = $options->getBaseUrl() . '/v2/subscription/customers/delete/' . $request->getCustomerReferenceCode() . RequestStringBuilder::requestToStringQuery($request);;
+        $rawResult = parent::httpClient()->post($uri, parent::getHttpHeadersV2($uri, null, $options), null);
+        return SubscriptionDeleteCustomerMapper::create($rawResult)->jsonDecode()->mapSubscriptionDeleteCustomer(new SubscriptionDeleteCustomer());
+    }
+
+    public function getCustomerReferenceCode(): string {
+        return $this->customerReferenceCode;
+    }
+
+    public function setCustomerReferenceCode(string $customerReferenceCode): void {
+        $this->customerReferenceCode = $customerReferenceCode;
+    }
+}
diff --git a/src/Iyzipay/Model/Subscription/SubscriptionList.php b/src/Iyzipay/Model/Subscription/SubscriptionList.php
new file mode 100644
index 00000000..a42b62c5
--- /dev/null
+++ b/src/Iyzipay/Model/Subscription/SubscriptionList.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace Iyzipay\Model\Subscription;
+
+use Iyzipay\Options;
+use Iyzipay\IyzipayResource;
+use Iyzipay\RequestStringBuilder;
+use Iyzipay\Model\Mapper\Subscription\SubscriptionListMapper;
+use Iyzipay\Request\Subscription\SubscriptionListRequest;
+
+class SubscriptionList extends IyzipayResource {
+    private string $subscriptionReferenceCode;
+    private string $subscriptionStatus;
+    private int $page;
+    private int $count;
+    private string $customerReferenceCode;
+    private string $parentReferenceCode;
+    private string $startDate;
+    private string $endDate;
+    private string $pricingPlanReferenceCode;
+
+    public static function create(SubscriptionListRequest $request, Options $options) {
+        $uri = $options->getBaseUrl() . '/v2/subscription/subscriptions' . RequestStringBuilder::requestToStringQuery($request, 'searchSubscription');
+        $rawResult = parent::httpClient()->getV2($uri, parent::getHttpHeadersV2($uri, null, $options));
+        return SubscriptionListMapper::create($rawResult)->jsonDecode()->mapSubscriptionList(new SubscriptionList());
+    }
+
+    public function getSubscriptionReferenceCode(): string {
+        return $this->subscriptionReferenceCode;
+    }
+
+    public function setSubscriptionReferenceCode(string $subscriptionReferenceCode): void {
+        $this->subscriptionReferenceCode = $subscriptionReferenceCode;
+    }
+
+    public function getSubscriptionStatus(): string {
+        return $this->subscriptionStatus;
+    }
+
+    public function setSubscriptionStatus(string $subscriptionStatus): void {
+        $this->subscriptionStatus = $subscriptionStatus;
+    }
+
+    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 getCustomerReferenceCode(): string {
+        return $this->customerReferenceCode;
+    }
+
+    public function setCustomerReferenceCode(string $customerReferenceCode): void {
+        $this->customerReferenceCode = $customerReferenceCode;
+    }
+
+    public function getParentReferenceCode(): string {
+        return $this->parentReferenceCode;
+    }
+
+    public function setParentReferenceCode(string $parentReferenceCode): void {
+        $this->parentReferenceCode = $parentReferenceCode;
+    }
+
+    public function getStartDate(): string {
+        return $this->startDate;
+    }
+
+    public function setStartDate(string $startDate): void {
+        $this->startDate = urlencode($startDate);
+    }
+
+    public function getEndDate(): string {
+        return $this->endDate;
+    }
+
+    public function setEndDate(string $endDate): void {
+        $this->endDate = urlencode($endDate);
+    }
+
+
+    public function getPricingPlanReferenceCode(): string {
+        return $this->pricingPlanReferenceCode;
+    }
+
+    public function setPricingPlanReferenceCode(string $pricingPlanReferenceCode): void {
+        $this->pricingPlanReferenceCode = $pricingPlanReferenceCode;
+    }
+}
diff --git a/src/Iyzipay/Request/Subscription/SubscriptionDeleteCustomerRequest.php b/src/Iyzipay/Request/Subscription/SubscriptionDeleteCustomerRequest.php
new file mode 100644
index 00000000..78b01f07
--- /dev/null
+++ b/src/Iyzipay/Request/Subscription/SubscriptionDeleteCustomerRequest.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Iyzipay\Request\Subscription;
+
+use Iyzipay\JsonBuilder;
+use Iyzipay\Request;
+
+class SubscriptionDeleteCustomerRequest extends Request {
+    private string $customerReferenceCode;
+
+    public function getCustomerReferenceCode(): string {
+        return $this->customerReferenceCode;
+    }
+
+    public function setCustomerReferenceCode(string $customerReferenceCode): void {
+        $this->customerReferenceCode = $customerReferenceCode;
+    }
+
+    public function getJsonObject(): array {
+        return JsonBuilder::fromJsonObject(parent::getJsonObject())
+            ->add('customerReferenceCode', $this->getCustomerReferenceCode())
+            ->getObject();
+    }
+}
diff --git a/src/Iyzipay/Request/Subscription/SubscriptionListRequest.php b/src/Iyzipay/Request/Subscription/SubscriptionListRequest.php
new file mode 100644
index 00000000..55faa3f3
--- /dev/null
+++ b/src/Iyzipay/Request/Subscription/SubscriptionListRequest.php
@@ -0,0 +1,104 @@
+<?php
+
+namespace Iyzipay\Request\Subscription;
+
+use Iyzipay\JsonBuilder;
+use Iyzipay\Request;
+
+class SubscriptionListRequest extends Request {
+    private string $subscriptionReferenceCode;
+    private string $subscriptionStatus;
+    private int $page;
+    private int $count;
+    private string $customerReferenceCode;
+    private string $parentReferenceCode;
+    private string $startDate;
+    private string $endDate;
+    private string $pricingPlanReferenceCode;
+
+    public function getSubscriptionReferenceCode(): ?string {
+        return $this->subscriptionReferenceCode ?? null;
+    }
+
+    public function setSubscriptionReferenceCode(string $subscriptionReferenceCode): void {
+        $this->subscriptionReferenceCode = $subscriptionReferenceCode;
+    }
+
+    public function getSubscriptionStatus(): ?string {
+        return $this->subscriptionStatus ?? null;
+    }
+
+    public function setSubscriptionStatus(string $subscriptionStatus): void {
+        $this->subscriptionStatus = $subscriptionStatus;
+    }
+
+    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 getCustomerReferenceCode(): ?string {
+        return $this->customerReferenceCode ?? null;
+    }
+
+    public function setCustomerReferenceCode(string $customerReferenceCode): void {
+        $this->customerReferenceCode = $customerReferenceCode;
+    }
+
+    public function getParentReferenceCode(): ?string {
+        return $this->parentReferenceCode ?? null;
+    }
+
+    public function setParentReferenceCode(string $parentReferenceCode): void {
+        $this->parentReferenceCode = $parentReferenceCode;
+    }
+
+    public function getStartDate(): ?string {
+        return $this->startDate ?? null;
+    }
+
+    public function setStartDate(string $startDate): void {
+        $this->startDate = urlencode($startDate);
+    }
+
+    public function getEndDate(): ?string {
+        return $this->endDate ?? null;
+    }
+
+    public function setEndDate(string $endDate): void {
+        $this->endDate = urlencode($endDate);
+    }
+
+    public function getPricingPlanReferenceCode(): ?string {
+        return $this->pricingPlanReferenceCode ?? null;
+    }
+
+    public function setPricingPlanReferenceCode(string $pricingPlanReferenceCode): void {
+        $this->pricingPlanReferenceCode = $pricingPlanReferenceCode;
+    }
+
+    public function getJsonObject(): array {
+        return JsonBuilder::fromJsonObject(parent::getJsonObject())
+            ->add('subscriptionReferenceCode', $this->getSubscriptionReferenceCode())
+            ->add('subscriptionStatus', $this->getSubscriptionStatus())
+            ->add('page', $this->getPage())
+            ->add('count', $this->getCount())
+            ->add('customerReferenceCode', $this->getCustomerReferenceCode())
+            ->add('parentReferenceCode', $this->getParentReferenceCode())
+            ->add('startDate', $this->getStartDate())
+            ->add('endDate', $this->getEndDate())
+            ->add('pricingPlanReferenceCode', $this->getPricingPlanReferenceCode())
+            ->getObject();
+    }
+}
diff --git a/src/Iyzipay/RequestStringBuilder.php b/src/Iyzipay/RequestStringBuilder.php
index 13682a77..79547766 100644
--- a/src/Iyzipay/RequestStringBuilder.php
+++ b/src/Iyzipay/RequestStringBuilder.php
@@ -150,6 +150,10 @@ 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();
@@ -175,6 +179,20 @@ public static function requestToStringQuery(Request $request, $type = null)
             }
         }
 
+        if($type == 'reportingScrollTransaction') {
+            if($request->getDocumentScrollVoSortingOrder()) {
+                $stringQuery = '?documentScrollVoSortingOrder=' . $request->getDocumentScrollVoSortingOrder();
+            }
+
+            if($request->getTransactionDate()) {
+                $stringQuery .= "&transactionDate=" . $request->getTransactionDate();
+            }
+
+            if($request->getLastId()) {
+                $stringQuery .= '&lastId=' . $request->getLastId();
+            }
+        }
+
         if($type == 'subscriptionItems' ) {
             if ($request->getPage()) {
                 $stringQuery = "?page=" . $request->getPage();
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/Subscription/SubscriptionDeleteCustomerTest.php b/tests/Iyzipay/Tests/Model/Subscription/SubscriptionDeleteCustomerTest.php
new file mode 100644
index 00000000..d2a4136d
--- /dev/null
+++ b/tests/Iyzipay/Tests/Model/Subscription/SubscriptionDeleteCustomerTest.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Iyzipay\Tests\Model\Subscription;
+
+use Iyzipay\Model\Subscription\SubscriptionDeleteCustomer;
+use Iyzipay\Request\Subscription\SubscriptionDeleteCustomerRequest;
+use Iyzipay\Tests\IyzipayResourceTestCase;
+
+class SubscriptionDeleteCustomerTest extends IyzipayResourceTestCase {
+    public function testShouldDeleteSubscriptionCustomer(): void {
+        $request = new SubscriptionDeleteCustomerRequest();
+        $request->setCustomerReferenceCode('566b2e1a-5046-4438-9b62-c8cf761f61d1');
+
+        $this->expectHttpPost();
+        $customer = SubscriptionDeleteCustomer::delete($request, $this->options);
+        $this->verifyResource($customer);
+    }
+}
diff --git a/tests/Iyzipay/Tests/Model/Subscription/SubscriptionListTest.php b/tests/Iyzipay/Tests/Model/Subscription/SubscriptionListTest.php
new file mode 100644
index 00000000..c51e33f7
--- /dev/null
+++ b/tests/Iyzipay/Tests/Model/Subscription/SubscriptionListTest.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Iyzipay\Tests\Model\Subscription;
+
+use Iyzipay\Request\Subscription\SubscriptionListRequest;
+use Iyzipay\Model\Subscription\SubscriptionList;
+use Iyzipay\Tests\IyzipayResourceTestCase;
+
+class SubscriptionListTest extends IyzipayResourceTestCase {
+    public function testShouldListSubscriptions(): void {
+        $request = new SubscriptionListRequest();
+        $request->setPage(1);
+        $request->setCount(10);
+        $request->setSubscriptionStatus(\Iyzipay\Model\Status::ACTIVE);
+        $request->setSubscriptionReferenceCode('c8ab43da-f4b3-40d2-b1ef-620da93ec3e9');
+        $request->setCustomerReferenceCode('566b2e1a-5046-4438-9b62-c8cf761f61d1');
+        $request->setPricingPlanReferenceCode('c1d489b6-9adc-42fa-88ae-47ea2e5dbe1e');
+        $request->setParentReferenceCode('f219267d-ce05-4039-a773-225ea44aacd1');
+        $request->setStartDate('2024-01-01');
+        $request->setEndDate('2024-02-02');
+
+        $this->expectHttpGetV2();
+        $list = SubscriptionList::create($request, $this->options);
+        $this->verifyResource($list);
+    }
+}
diff --git a/tests/Iyzipay/Tests/Request/Subscription/SubscriptionDeleteCustomerRequestTest.php b/tests/Iyzipay/Tests/Request/Subscription/SubscriptionDeleteCustomerRequestTest.php
new file mode 100644
index 00000000..35efb63c
--- /dev/null
+++ b/tests/Iyzipay/Tests/Request/Subscription/SubscriptionDeleteCustomerRequestTest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Iyzipay\Tests\Request\Subscription;
+
+use Iyzipay\Request\Subscription\SubscriptionDeleteCustomerRequest;
+use Iyzipay\Tests\TestCase;
+
+class SubscriptionDeleteCustomerRequestTest extends TestCase {
+    public function testShouldGetJsonString(): void {
+        $request = $this->prepareRequest();
+        $jsonObject = $request->getJsonObject();
+
+        $this->assertEquals('566b2e1a-5046-4438-9b62-c8cf761f61d1', $jsonObject['customerReferenceCode']);
+    }
+
+    private function prepareRequest() {
+        $request = new SubscriptionDeleteCustomerRequest();
+        $request->setCustomerReferenceCode('566b2e1a-5046-4438-9b62-c8cf761f61d1');
+        return $request;
+    }
+}
diff --git a/tests/Iyzipay/Tests/Request/Subscription/SubscriptionListRequestTest.php b/tests/Iyzipay/Tests/Request/Subscription/SubscriptionListRequestTest.php
new file mode 100644
index 00000000..08350ac5
--- /dev/null
+++ b/tests/Iyzipay/Tests/Request/Subscription/SubscriptionListRequestTest.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Iyzipay\Tests\Request\Subscription;
+
+use Iyzipay\Request\Subscription\SubscriptionListRequest;
+use Iyzipay\Tests\TestCase;
+
+class SubscriptionListRequestTest extends TestCase {
+    public function testShouldGetJsonString(): void {
+        $request = $this->prepareRequest();
+        $jsonObject = $request->getJsonObject();
+
+        $this->assertEquals(1, $jsonObject['page']);
+        $this->assertEquals(10, $jsonObject['count']);
+        $this->assertEquals(\Iyzipay\Model\Status::ACTIVE, $jsonObject['subscriptionStatus']);
+        $this->assertEquals('c8ab43da-f4b3-40d2-b1ef-620da93ec3e9', $jsonObject['subscriptionReferenceCode']);
+        $this->assertEquals('566b2e1a-5046-4438-9b62-c8cf761f61d1', $jsonObject['customerReferenceCode']);
+        $this->assertEquals('c1d489b6-9adc-42fa-88ae-47ea2e5dbe1e', $jsonObject['pricingPlanReferenceCode']);
+        $this->assertEquals('f219267d-ce05-4039-a773-225ea44aacd1', $jsonObject['parentReferenceCode']);
+        $this->assertEquals('2024-01-01', $jsonObject['startDate']);
+        $this->assertEquals('2024-02-02', $jsonObject['endDate']);
+    }
+
+    private function prepareRequest(): SubscriptionListRequest {
+        $request = new SubscriptionListRequest();
+        $request->setPage(1);
+        $request->setCount(10);
+        $request->setSubscriptionStatus(\Iyzipay\Model\Status::ACTIVE);
+        $request->setSubscriptionReferenceCode('c8ab43da-f4b3-40d2-b1ef-620da93ec3e9');
+        $request->setCustomerReferenceCode('566b2e1a-5046-4438-9b62-c8cf761f61d1');
+        $request->setPricingPlanReferenceCode('c1d489b6-9adc-42fa-88ae-47ea2e5dbe1e');
+        $request->setParentReferenceCode('f219267d-ce05-4039-a773-225ea44aacd1');
+        $request->setStartDate('2024-01-01');
+        $request->setEndDate('2024-02-02');
+        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
+}