Deleting a Card Holder Account

Hi

I have a problem with a payment option on my AdSense account and I have not been able to find any answers in Google AdSense help or forums.

I accidentaly changed the payment options from my business account to my personal account but didn't change the name on the card / account.
So my personal account has the business name which I don't think will clear a transaction to my account (I may be wrong there).
I tried toe dit the details, it won't let me.
I looked to delete an account - there isn't an option I can find.
I tried to add the account again with the correct details - it won't let me because the details for that account already exist!

Anyone have any experience with removing a payment option in Google AdSense? I have funds just about to clear and would like to get it fixed before it goes into the financial abyss!

Thanks