The schoolteacher and his wife paid a hefty chunk of their credit card balance [$6,522], and then checked online to see if their account had been credited. They learned that the check had arrived, but the amount available for credit on their account hadn’t changed. They called to see what the problem was.
They were told, as they moved up the managerial ladder at the call center, that the amount they had sent in was much larger than their normal monthly payment—and if the increase hits a certain percentage higher than that normal payment, Homeland Security has to be notified.
For paying off your credit card.