diff --git a/apps/chatbot/config/params.yaml b/apps/chatbot/config/params.yaml
index 15c43866d..0dddd7daf 100644
--- a/apps/chatbot/config/params.yaml
+++ b/apps/chatbot/config/params.yaml
@@ -52,3 +52,35 @@ config_presidio:
       - ORGANIZATION
       - ORG
     default_score: 0.8
+  allow_list:
+    - Discovery
+    - discovery
+    - Rif
+    - SEND
+    - send
+    - Send
+    - GPD
+    - gpd
+    - Gpd
+    - STATO
+    - stato
+    - PagoPA 
+    - pagoPA
+    - pagopa
+    - Pagopa
+    - Firma con IO
+    - IO
+    - io
+    - Io
+    - PDND
+    - pdnd
+    - Pdnd
+    - IDPay
+    - idpay
+    - IDpay
+    - Idpay
+    - IdPay
+    - id-pay
+    - ID-Pay
+    - id-Pay
+    - ID-pay
\ No newline at end of file
diff --git a/apps/chatbot/src/modules/chatbot.py b/apps/chatbot/src/modules/chatbot.py
index f9ffa44ba..4b715b7e9 100644
--- a/apps/chatbot/src/modules/chatbot.py
+++ b/apps/chatbot/src/modules/chatbot.py
@@ -127,7 +127,11 @@ def _unmask_reference(self, response_str: str, nodes) -> str:
     def mask_pii(self, message: str) -> str:
         if USE_PRESIDIO:
             try:
-                return self.pii.mask_pii(message)
+                split_message = message.split("Rif:")
+                masked_message = self.pii.mask_pii(split_message[0])
+                if len(split_message)>1:
+                    masked_message = masked_message + "Rif:" + split_message[1]
+                return masked_message
             except Exception as e:
                 logging.warning(f"[chatbot.py - mask_pii] exception in mask_pii: {e}")
         else:
diff --git a/apps/chatbot/src/modules/presidio.py b/apps/chatbot/src/modules/presidio.py
index e839958f9..ef0122d88 100644
--- a/apps/chatbot/src/modules/presidio.py
+++ b/apps/chatbot/src/modules/presidio.py
@@ -35,10 +35,6 @@
     "IT_PHYSICAL_ADDRESS"
 ]
 
-ALLOW_LIST = [
-    "Discovery", "discovery", "pagoPA", "PagoPA", "pagopa", "Rif"
-]
-
 
 class EntityTypeCountAnonymizer(Operator):
     """
@@ -90,7 +86,7 @@ class PresidioPII():
 
     def __init__(
             self,
-            config: Union[Path, str] | dict,
+            config: dict,
             entity_mapping: Dict[str, Dict] = {},
             mapping: Dict[str, str] = {},
             entities: List[str] | None = None,
@@ -103,12 +99,10 @@ def __init__(
         self.entities = entities if entities else GLOBAL_ENTITIES
         self.analyzer_threshold = analyzer_threshold
 
-        if isinstance(self.config, (Path, str)):
-            self.provider = NlpEngineProvider(conf_file=self.config)
-        elif isinstance(self.config, dict):
+        if isinstance(self.config, dict):
             self.provider = NlpEngineProvider(nlp_configuration=self.config)
         else:
-            raise ValueError("Error! config should be a path or a dictionary.")
+            raise ValueError("Error! config should be a dictionary.")
         nlp_engine = self.provider.create_engine()
         self.nlp_engine = nlp_engine
         self.analyzer = AnalyzerEngine(
@@ -157,7 +151,7 @@ def detect_pii(self, text: str) -> List[RecognizerResult]:
             text=text,
             language=lang,
             entities=self.entities + IT_ENTITIES if lang == "it" else self.entities,
-            allow_list=ALLOW_LIST
+            allow_list=self.config["allow_list"]
         )
 
         return results