diff --git a/osinaweb/osinacore/api/serializers.py b/osinaweb/osinacore/api/serializers.py
index 8b7827a8..0f3a086b 100644
--- a/osinaweb/osinacore/api/serializers.py
+++ b/osinaweb/osinacore/api/serializers.py
@@ -12,4 +12,4 @@ class CustomerProfileSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = CustomerProfile
-        fields = ['user', 'mobile_number']
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+        fields = ['mobile_number']
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diff --git a/osinaweb/osinacore/api/views.py b/osinaweb/osinacore/api/views.py
index e1053695..359a45b1 100644
--- a/osinaweb/osinacore/api/views.py
+++ b/osinaweb/osinacore/api/views.py
@@ -13,15 +13,13 @@ def register_customer(request):
         if user_serializer.is_valid():
             user = user_serializer.save()
             customer_data = request.data['customer']
-            user_instance = get_object_or_404(User, id=user.id)
-            customer_data['user'] = user_instance
             customer_serializer = CustomerProfileSerializer(data=customer_data)
             if customer_serializer.is_valid():
-                customer_serializer.save()
+                customer_instance = customer_serializer.save(user=user) 
                 return Response({'message': 'User and Customer registered successfully'}, status=status.HTTP_201_CREATED)
             else:
                 return Response(customer_serializer.errors, status=status.HTTP_400_BAD_REQUEST)
         else:
             return Response(user_serializer.errors, status=status.HTTP_400_BAD_REQUEST)
     else:
-        return Response({'message': 'User and Customer data are required'}, status=status.HTTP_400_BAD_REQUEST)
+        return Response({'message': 'User and Customer data are required'}, status=status.HTTP_400_BAD_REQUEST)
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