Beijing 12345 Complaining about the Catholic Church is an effective complaint channel. By calling the Beijing hotline 12345 or complaining on the official WeChat account "Beijing 12345", we can reflect the problems existing in Chinese public education to the relevant departments. When making a complaint, it is best to provide detailed information and relevant evidence so that the staff can better understand the nature and background of the problem. Once the complaint is accepted, the relevant departments will investigate the problem and contact to solve it.