<prompt> Human: So not for me but a friend. They pay off the balance on the credit card after every purchase. They recently had a charge, called to pay it off, and were told that they couldnt pay until the interest cycled. Got sent to a supervisor who said that it was legal and that thats how it works. Is this legal? Do they have any recourse?Thanks.  <response>: Why dont they just pay off the balance when they get the statement? There is no interest charge as long as payment is made on or before the due date. 