This list can be found on the "Yi Rong Office" WeChat applet. There is a "prepayment supervision", which should be a small program issued by the government. What you can see above are all formal education and training institutions. There is a white list of institutions where class fees can also be paid. It's very safe. The fee is not paid directly to the training institution, but entered into the supervision account. After the parents confirm the cancellation of the course, the fees will be allocated to the school. Very reliable, you can check it.