1. Open the WeChat page and click "Pay". Click "wallet" in the upper right corner. Click the third health card. Click the bank card number you want to unbind. Click "..." to unbind in the upper right corner. (If all the bound bank cards are unbound, bind them one by one according to the above steps).
2. You can go to a hospital with a health card to disassociate, or you can call Alipay to disassociate.