Missing item

I am never impressed with the service at kfc kempton gate mall. They will deliver the order with missing items. I ordered 6 chicken nuggets with a colonel sauce but it came without one. The only reason why I even order those nuggets is because of the sauce, but they never include it. This is not the first time. And I was told to order it separately but it's included on the MrD app. This error should be corrected because it really is frustrating. Kfc kempton gate, do better!