Little Caesars Pizza locations in Denver, CO

I called in and said Hi, my name is Rose and I want to order a hamburger pizza with mushrooms, he could barely speak english and said we dont have that and hung up! I called back and and again said I want a hamburger,,, he cut in we dont have that I said yes you do, he hung up I called back and asked for a manager and she spoke english and said "we call it the beef spizza he does not know what hamburger is" HUH??? ok so give me a large hamburger pizza with mushrooms and a bread stick order my son will be in to pick it up, they got home with a good pizza and no bread sticks!!!