diff --git a/engine/payments/views.py b/engine/payments/views.py
index 989c48c4..1c385582 100644
--- a/engine/payments/views.py
+++ b/engine/payments/views.py
@@ -9,6 +9,7 @@ from rest_framework.response import Response
 from rest_framework.views import APIView
 
 from engine.payments.docs.drf.views import DEPOSIT_SCHEMA
+from engine.payments.gateways import UnknownGatewayError
 from engine.payments.models import Transaction
 from engine.payments.serializers import DepositSerializer, TransactionProcessSerializer
 
@@ -71,7 +72,9 @@ class CallbackAPIView(APIView):
 
     def post(self, request: Request, *args: list[Any], **kwargs: dict[Any, Any]) -> Response:
         try:
-            transaction = Transaction.objects.get(uuid=kwargs.get("uuid"))
+            transaction = Transaction.objects.get(uuid=kwargs.get("uuid", ""))
+            if not transaction.gateway:
+                raise UnknownGatewayError()
             gateway = transaction.gateway.get_integration_class_object()
             gateway.process_callback(request.data)
             return Response(status=status.HTTP_202_ACCEPTED)