The function of billing address is to let merchants compare whether you are the cardholder himself. The address of the bill is exactly the same as the address left by the bank, but foreign merchants only need to translate it into English when spending.

To modify the billing address of a credit card in Amazon:

1. Log on to Amazon.

2. You will be prompted to find "Manage your payment methods" in the payment settings of "My Account";

You just need to choose the right address again.