Inactive credit card, network problem, bank card expiration, etc.

1. Unactivated credit card: Visa is a credit card brand issued by an international issuing institution in cooperation with banks. When a user obtains a new Visa credit card, he or she must log in to the online or telephone service provided by the bank for initial setup and verification. Users cannot associate their Visa cards with third-party platforms (WeChat, Alipay) before completing this step.

2. Network issues: To successfully bind Visa to micro-merchant (Alipay, Weidian, etc.), you must ensure that your mobile phone or computer is in good and stable connection to the Internet. The network is unstable, has high latency, or has other network problems, causing the card binding operation to fail.

3. Bank card expiration: All debit and credit/quasi-credit payment instruments issued by banks to customers have expiration dates. After the expiration date, cardholders must apply to their bank to replace the card with a new version due to security and compliance considerations. The Visa card has expired. Users need to contact the bank to apply for a new card. After obtaining the new card, try to bind it to WeChat Alipay again.