Unacceptable order errors

Debonairs Bethlehem did not deliver my complete order. This is the 3rd time it happened. Every single time they forget to make the margaritas pizza. It is the only pizza my youngest child eats and every time she must wait the longest for her meal while the rest of us the have cold pizza by the time they fdeliver the balance of my order. I did phone the store and requested management to phone me, as well as their official site. I am still waiting for the calls....