It is a civil dispute that Chinese public education does not refund, so it is useless to call the police, and it needs to be judged by filing a civil lawsuit.

If public educational institutions in China fail to refund their fees within the time limit, they can report the case on the grounds of fraud, but the normal situation is a civil dispute, which needs to be solved by filing a civil lawsuit.

You can also try to complain to the education department or the consumer association.

If fraud is involved, you can call the police directly.