I have carefully read your question, and my suggestions are as follows:

First report to the Secretary for Education. You can choose to report to his superior. For example, report to the director of the municipal education bureau and report to the provincial education department.

Second, you can report to the local government supervisory organs, such as the procuratorate and the supervision department of the municipal party Committee.

Third, you can also protect your legitimate rights and interests through administrative litigation or administrative reconsideration.

The above is my suggestion for your problem.

I hope my answer can help you and make you satisfied.