Never sure about the "immoral contracts" thing (and I have a certain knowledge of matters legal). Prostitution itself (the act of selling sex for money) is not and never has been illegal - Plod could not prosecute a lone WG for working from home. Everything else associated with prostitution is, though (kerb crawling, soliciting, more than one girl in a flat, renting flat for purposes of prostitution, not paying tax, etc), soooooo "technically" you might be able to bring a case, but who's going to bother? Just post a negative review on here - far more likely to buck their ideas up...