I was a teacher at Jiujiang number 5 middle school in 2004-2005. I had a modern flat and a good contract ( three full paid vacations ). The school is placed in the centre of the city and teachers live on campus. Most foreigners worked two years at this school at least. Foreigners are treated with much respect and consideration and salaries + benefits are paid on time.
What have you done wrong there ? Why did they take you to the police department ?
According to your level of English ( no writing rules ), may I ask you, what was your job before ? Do you have any degrees ?
The situation is a little different at Jiujiang university. The campus is very far from the city. The apartments are nice but the contract is bad ( no paid vacations and in June and January when students have exams, foreigners get half of their salaries.All these details are written in their contract.
Why did you sign such a contract ? Who forced you to go there ? I assume that Mary Cao, Kyle Smith and Nick are working at Jiujiang university. I have never heard these names at number 5 middle school.