Closed mouths don't get fed.
But you need to go down to some city office (don't know which one) and file a complaint. First, you need to speak with the manager though. Maybe it's an innocent mistake and they need to be aware. Don't burn your bridges if you need the job. When I was a waitress we shared tips and I had to hand the bussers and bar tenders my cash, so maybe they're stiffing you.
If you don't want to do all that, trust, you can find a busser job yesterday. High turnover job and they always need them. Just find somewhere else to work if need be. Going through the city will take awhile and I gather you have bills. How are you supporting yourself on third world Apple wages?
Maybe you dwell under a bridge and collect tolls...