Tencent Congress does not support the unbinding of WeChat, but it can unbind WeChat after canceling the account. The specific operation steps are as follows:

1. After opening Tencent Conference, click the avatar in the upper left corner.

2. After opening the avatar, drop down the page, find and click "WeChat".

3. After opening the WeChat page, click "Change Binding" below.

4. At this time, the following authentication method will pop up, and then select the method you like.

5. For example, if I choose to pass the original micro-signal verification, it will automatically jump to the WeChat APP, and then the following page will appear, and then click "Unbind New WeChat" to unbind the original number and replace it with a new number.

That's all. I hope I can help you.