they think they can cheat you because so many foreigners do nothing

the small claims court is very useful as a last resort, this school is not very powerful and the tax office will punish them

the Chinese teachers in these schools often are related to the bosses and take all the bonuses such as open classes
some even earn more than foreigners

what is illegal and legal in China is a grey area but Meten is one of the dirtiest private schools in China
Others such as Webi and not much better

But what they do with the visas for full time staff is crazy, not even a business visa