Hello @Seller_aMVoRn16YDkTW- and thank you for looking to the seller forums for some guidance on this charge method issue.

I can help share these instructions for updating your charge information, along with this FAQ on credit or debit cards which shares the following details:

"Why is my credit or debit card listed as invalid?

We verify your credit or debit card based on the following requirements. Violating one or more of the requirements below will result in your card being denied by Amazon.

• The number you entered must match the number on your credit or debit card.
• The billing address you entered must match the billing address on your credit or debit card statement.
• The CVV code you entered must match the code on your credit or debit card.
• The card expiry date must be at least six months from when you add the card.
• The card holder's name you entered must match the card holder's name on your credit or debit card (in the Latin-script alphabet).
• The card must not be a prepaid, virtual or gift card.
• The card must be chargeable in the currency of the Amazon store(s) for which the card is being provided.
• The card must have adequate credit limit to pay for the charge.
• If you were asked to enter a unique security code by your financial institution, the code you entered must match the code sent to the card holder via SMS, email or token.

If your card meets all the requirements above but is still listed as invalid, we recommend trying a different card or contacting your financial institution for assistance. If you have tried at least two different credit or debit cards that meet the requirements above and all of them were denied, contact Amazon Selling Partner Support for assistance."

I hope this content helps clarify and resolve the issue, but if not, I would recommend connecting with your financial institution and Amazon seller support for more technical troubleshooting.

Best,

Danny