For several weeks, I have been trying to update my supposed invalid credit card. I even have a screenshot showing that I updated the card and was billed $39.99 on it. So, I'm not sure why the credit card is considered invalid or unable to accept international payments.
Additionally, when I try to log in with my main user account, it says that the account is not associated with any Amazon seller accounts. When I use my second email, it says I don't have authorization to change any credit card information. I've attached a screenshot showing where I updated the credit card.
I have been going back and forth with your representatives, but they don't seem to understand my issue or escalate it to further tech support. I don't know what else to do, but this is my initial feedback to Amazon. You have made it very difficult for new sellers to use your platform.