diff --git a/app/api/services/eligibility_check.py b/app/api/services/eligibility_check.py
index 38212dc..2413436 100644
--- a/app/api/services/eligibility_check.py
+++ b/app/api/services/eligibility_check.py
@@ -74,7 +74,7 @@ class EligibilityCheckService(BaseService):
             # Simulate processing
             response_data = {
                 "customerId": customer_id,
-                "transactionId": transaction_id,
+                "transactionId": transaction.id,
                 "countryCode": "NG",
                 "msisdn": "3451342",
                 "eligibleOffers": offers,