I was late in paying a statement balance. The next day I paid the full " statement balance '' not the current balance. I was charged a fee and interest ... .no problem. the next billing cycle I was charged interest again even though that statement balance was paid on time. When I called Chase XXXX. I was told by XXXX different employees that this was the correct fee but they would try and waive it. I finally spoke to the super. and they admitted it was a mistake and they removed the fee. she said the " interest was not suppressed even though I had paid the full statement balance. I suspect the computer algorithm is erroneously charging many other Chase customers.