Bad pizza

I ordered pizza on the 24th of October from garden city mayfair for me to enjoy with my family. We ordered 1 large chicken triple decker pizza, guess what we got as the fillings.... Mushrooms, tomatoes and creamy sauce,the main ingredient which is chicken was not visible. The pizza wa soooo horrible I had to resort to eating bread and eggs as I didn't expect only vegetables in my pizza. Please do something about it this complain because it's not the first time I get such disgusting service. If they don't have ingredients for what I have ordered then they need to give me an alternative. I'm expecting feedback from you regarding this issue.