The first one is that WeChat has real-name authentication, or it is bound to its own bank card and cannot be bound to other people's credit cards. In the second case, the salted fish has not passed the real-name authentication and is not bound to the bank card. Then, with the consent of others, you can bind other people's credit cards, but it will be more troublesome to use, because sometimes you need to enter SMS verification code to bind credit cards.