Disgraceful service and behavior.

I ordered a small pizza. The pizza that I received had different toppings on. I made the guy who helped me aware that it is the wrong pizza. He immediately became rude and offensive. A heated discussion followed. I left. When I returned later to resolve the matter he was again rude with an attitude that he is untouchable. I ask his name. He refused. I ask his assistant. She refused to give his name. I ask to speak to the manager. She mentioned he is the manager. Needless to say, I left without my pizza and my money. Pizza Hut wants to give back my money now. The manager is now saying I am lying about the whole thing. Pizza Hut is covering for the manager. There are video cameras in store. Why don't they use that to get to the truth.