Unable to create MCF Orders due to outstanding payment

Hi. I have tried to create an MCF order today only to find that when I click the link I get a message to contact Amazon support!

It appears I have a outstanding balance of £3.04 which I believe is the reason I can’t access account feature.

I have added my new card to the charge methods and updated all European marketplaces with this card.

I was able to delete the old card and attempted to pay the outstanding balance. When I submit the payment the page refreshes and no payment is taken!

I’m still stuck with a silly amount outstanding which is stopping access completely to my account.

Any advice greatly appreciated as its driving me mad!