I also had the same problem while I worked at Liyang Foreign language school. I had been working there for one year, the students were great, teachers great but Madame Li owns the police force there so be careful. Anyone that has that much money there owns everybody.

She also told the police i'd been working on wrong visa but she was one who didn't provide it for me. I had to leave on my birthday, with many tears (from myself included).

They often don't pay, if they do, it was late but the biggest problem was the power that the owner of the school had.