1. Real-name authentication query: Search for "Tencent Health System" on WeChat, click "Real-name authentication query" after entering, and if it can be changed, use the adult ID card information to make changes.
2. Contact customer service: through the customer service channel of Tencent Health System, provide the information of minors' identity documents to help untie them.
3. Re-register your account: If the above methods fail to solve the problem, you can consider re-registering a brand-new account, but please be careful not to use false identity information.