Legal analysis: cram schools can complain to the industrial and commercial bureau or the education department without invoices and contracts. The process of complaining to the education department is as follows:

1, write a tip-off letter to the Provincial Department of Education and put it in the "petition mailbox";

2. If the Provincial Department of Education ignores it, you can write a tip-off letter to the Ministry of Education and put it in the "petition mailbox";

3. In order to improve the success rate of reporting, you can go to these departments to "petition directly" and find relevant leaders.

Legal basis: The Organic Law of Local People's Congresses and Local People's Governments in People's Republic of China (PRC) ensures the integrity of the license. Off-campus training institutions must obtain a school license after examination and approval, and obtain a business license (or a certificate of legal person of a public institution or a registration certificate of a private non-enterprise unit, the same below) before they can carry out training. If the school license and business license have been obtained, if they do not meet the set standards, they should be rectified according to the standards. If the rectification is not in place, the school license shall be revoked, the training activities shall be terminated, and the registration shall be changed or cancelled according to law.