So called Chicken tripple dec pizza with no meat

I ordered Pizza in debonairs in howick, went to collect it and when I reached in my room, I tried to eat it, and it did not taste normal as I always order chicken and mushroom triple dec pizza from there, when I open it, there was lot of source and no chicken inside, it was like a left over food that they gave me, and it was not well cooked, as it had burnt layers around. I am not happy about that, and to pay for something that does not satisfy you it makes you feel like you being ******, or they undermining you. I feel so mislead, I was expecting something good, and I found something that could not be eating by even a dog.