A friend of mine is having some problems in his working place. He is a waiter in a restaurant. He needs to talk with the right union to get some information. He doesn't have internet and he lives in Derby. Where does he has to go, in Derby, to look for all the information that he needs?

I don't believe that there is a union that covers waiting staff as such.
What exactly is the issue they are facing..

He didn't say exactly what is the problem. He just said that they are finding essues that have no meaning and he is starting to streess a lot because of it. One thing he said though. It's got something to do with racism.