48 hours.

It can take up to 48 hours for Amazon to update all new credit card information into your seller account. You may be redirected to your financial institution and will not be redirected back until you complete the credit card security verification. Amazon. For each credit card you provide to Amazon and use on each marketplace where you do business, we may need to use an additional method to verify that you are the cardholder of those credit cards. For information about credit card verification issues, go to the Seller Credit Card FAQ.