I called American Express to pay off my existing balance on a CLOSED card. When I asked for the PAYOFF BALANCE (definition-the balance that would lead my account to zero so that I have no outstanding balance) I was told that they could not give me an accurate payoff and there could possibly be some outstanding interest charged on my account due to unaccounted for transactions. Again, my card is closed and I have not used it for five months. It has to be illegal for a financial institution to nickle and dime their customers and quote them... read full review »