Very bad service

This is the third time that i encountered the same problem with staff at Steers Cape Gate. I ordered a rave burger without sauce ( this happened 3 times before) and every time when i get home ..guest what..there is SAUCE ON THE BURGER!!!! On the till slip it states no sauce she confirmed with me 4 times "without sauce" and yet i came home and found sauce of the burger. I phoned the manager " Matilda" she said i must come in they will give me another burger. Why must i travel back to them???? Its there mistake!! Not mine. It was my daughters dinner. So she went without dinner tonite. Matilda refused to give me the owners number that i can take this uo with him. If it was the first time sure were all human. But after the 3rd time??? Really??? Where is the quality control manager to oversee that the food go out correctly??? Disappointing and highly disgusted. The manager asked me if i can come tomorrow they will give me anything. But my daughter wants to eat tonight! Are the stupid??