I noticed some brother got be tricked in Shanghai. We should stop this!
Both my friends and I got the same situation about two month ago. But we all called the police to help us get refund. I saw some news paper also reported the similar thing in shanghai. Remember before you call police you should get evidence or witness for you. such thing like receipt. I was uses the picture I took in my cell phone as evidence in my case. My friend used witness. both of us win the case immediatly.
If you hold foreign passport, don't be fear. Chinese police never arrest foreigner in prostitution case.
even if you don't have anything to prove, you still need to call the police. because after several called in the same situation, this place will suspected by the police. it will help other brother win the case there later.
everyone has the responsibility to stop the scam!!!