1. If it is an offline store of Chang Yan Putonghua, you can complain to the local education department or industrial and commercial department through the nature of the organization.

2. If it is a mandarin App, you can choose to complain to the application platform that downloaded the app, or you can complain to the Internet Bad and Spam Reporting Acceptance Center of the Ministry of Industry and Information Technology at telephone number 1232 1, or through the city service page of 123265438, WeChat, mobile QQ,12326558.

1232 1 the complaint acceptance scope of the network bad and spam report acceptance center:

You can complain about bad and junk information in various forms of information communication networks and telecommunications services (such as the Internet and telecommunications networks). It mainly includes: spam messages, harassing calls, fraudulent calls, spam, bad websites, bad apps, and personal information disclosure.