diff --git a/app/api/services/repayment.py b/app/api/services/repayment.py
index a8d5738..1aff386 100644
--- a/app/api/services/repayment.py
+++ b/app/api/services/repayment.py
@@ -24,9 +24,11 @@ class RepaymentService:
 
             # Simulated processing logic
             response_data = {
-                "repayment_id": "67890",
-                "status": "Paid",
-                "amount": validated_data.get("amount", 0),  # Example: Use validated field
+                "customerId": "CN621868",
+                "productId": "101",
+                "debtId": "273194670",
+                "resultCode": "00",
+                "resultDescription": "Successful"
             }
 
             # return ResponseHelper.success(
diff --git a/app/swagger/paths/CustomerConsent.json b/app/swagger/paths/CustomerConsent.json
index dafbf04..c6da51c 100644
--- a/app/swagger/paths/CustomerConsent.json
+++ b/app/swagger/paths/CustomerConsent.json
@@ -43,7 +43,10 @@
           }
         },
         "400": {
-          "description": "Invalid request"
+          "description": "Invalid request parameters"
+        },
+        "422": {
+          "description": "Validation exception"
         },
         "500": {
           "description": "Internal server error"
diff --git a/app/swagger/paths/EligibilityCheck.json b/app/swagger/paths/EligibilityCheck.json
index b5dbcb4..9afbf64 100644
--- a/app/swagger/paths/EligibilityCheck.json
+++ b/app/swagger/paths/EligibilityCheck.json
@@ -44,10 +44,13 @@
                 }
             },
             "400": {
-                "description": "Invalid ID supplied"
+                "description": "Invalid request parameters"
             },
             "422": {
                 "description": "Validation exception"
+            },
+            "500": {
+                "description": "Internal server error"
             }
         }
     }
diff --git a/app/swagger/paths/LoanStatus.json b/app/swagger/paths/LoanStatus.json
index ee1b633..fbfd0c4 100644
--- a/app/swagger/paths/LoanStatus.json
+++ b/app/swagger/paths/LoanStatus.json
@@ -44,13 +44,13 @@
           }
         },
         "400": {
-          "description": "Invalid ID supplied"
-        },
-        "404": {
-          "description": "Loan not found"
+          "description": "Invalid request parameters"
         },
         "422": {
           "description": "Validation exception"
+        },
+        "500": {
+          "description": "Internal server error"
         }
       }
     }
diff --git a/app/swagger/paths/NotificationCallback.json b/app/swagger/paths/NotificationCallback.json
index d241e1e..ed902ef 100644
--- a/app/swagger/paths/NotificationCallback.json
+++ b/app/swagger/paths/NotificationCallback.json
@@ -43,14 +43,14 @@
             }
           }
         },
-        "400": {
-          "description": "Invalid ID supplied"
-        },
-        "404": {
-          "description": "Loan not found"
+       "400": {
+          "description": "Invalid request parameters"
         },
         "422": {
           "description": "Validation exception"
+        },
+        "500": {
+          "description": "Internal server error"
         }
       }
     }
diff --git a/app/swagger/paths/ProvideLoan.json b/app/swagger/paths/ProvideLoan.json
index a201879..5c2a4e7 100644
--- a/app/swagger/paths/ProvideLoan.json
+++ b/app/swagger/paths/ProvideLoan.json
@@ -44,10 +44,13 @@
           }
         },
         "400": {
-          "description": "Invalid ID supplied"
+          "description": "Invalid request parameters"
         },
         "422": {
           "description": "Validation exception"
+        },
+        "500": {
+          "description": "Internal server error"
         }
       }
     }
diff --git a/app/swagger/paths/Repayment.json b/app/swagger/paths/Repayment.json
index e0c0878..68fafa5 100644
--- a/app/swagger/paths/Repayment.json
+++ b/app/swagger/paths/Repayment.json
@@ -43,7 +43,10 @@
                 }
             },
             "400": {
-                "description": "Invalid request"
+                "description": "Invalid request parameters"
+            },
+            "422": {
+                "description": "Validation exception"
             },
             "500": {
                 "description": "Internal server error"
diff --git a/app/swagger/paths/SelectOffer.json b/app/swagger/paths/SelectOffer.json
index e83dd23..4c7069d 100644
--- a/app/swagger/paths/SelectOffer.json
+++ b/app/swagger/paths/SelectOffer.json
@@ -44,13 +44,13 @@
                 }
             },
             "400": {
-                "description": "Invalid ID supplied"
-            },
-            "404": {
-                "description": "Offers not found"
+                "description": "Invalid request parameters"
             },
             "422": {
                 "description": "Validation exception"
+            },
+            "500": {
+                "description": "Internal server error"
             }
         }
     }