Originally Posted by
tev9999
Generating a large positive balance on your credit card may just get your account locked due to a fraud alert. There are several reports of it at fatwallet when people tried to balance transfer to an empty card. Some might allow it, some might reject the payment, some might lock the account. I would call before generating a large positive balance.
Hard to see why a substantial "overpayment" or "pre-payment" should be a concern for the credit card company, but I suppose theirs is a better-safe-than-sorry one, so they flag anything that is very unusual, whether in charging or payment pattern, with a big "over" or "pre-" being very unusual.
Anyway, if it is not a "money laundering" issue with all the problems that might bring, but rather a possible fraud concern, there may be the opportunity to arrange it with a phone call or other communication, perhaps getting Official Payments involved. (It's very hard to find contact info for OP, so as to speak to someone rather than go through their endless loops of menus that allow for no human intervention.)