What's the name of the school? What is the employer's name? Were you hired by a recruiter? If so, what is the name of the agency? What are the circumstances under which you were hired? Did you read deep into the contract? Did you ask for pictures of the school, the apartment and the neighborhood before you accepted the job? Who recommended the school to you? Did you ask for testimonials from prior teachers?
I ask these questions not from a position of derision but from one of curiosity.......It is my belief that most disgruntled employees that post here are those who have naively accepted positions with private schools. Said private schools are rarely administered by educators - meaning that they are the ones who fall into the category of institutions that are strictly profit motivated. Furthermore, they are the ones who not only treat foreign teachers unfairly but are also the ones who deprive their students of proper education by hiring unqualified teachers. Moreover they are bilking parents out of their hard earned cash.
As I've said repeatedly in this forum, and this is especially true for young teachers and those seeking to gain valuable experience by working abroad, one would be much better off if they'd apply directly to universities. Generally, it is quite easy to get testimonials and etc. from the FAO office of the university to which you are applying. If, after you have taught in a university or reputable college setting, you want to try working for a private school, you will be doing so from a position of having learned more about the EFL landscape in China.
Good luck................