A: The reason why the bank card is unavailable is related to the validity period of the card. The bank card has been changed because it has expired. You can reactivate or switch to another bank card.

First, the bank card status should be normal.

Second, you need to contact the bank in the following situations, and solve the bank card problem first:

1. The bank card has been "reported lost".

2, the validity period of the card, because the bank card has expired.

3. If you change your card, you can reactivate it or change a bank card.

Third, the solution is as follows:

1, log in to Alipay, click "Account Connection" and select "Manage".

2. Click "Add Bank Card" and enter the bank card information to pay again.