<prompt> Human: This occurred to me and Im wondering if anyones taken advantage of it, or if it even works. Could you potentially max out your cashback card with something refundable, like Amazon Prime merchandise or plane tickets, wait until after your statement period when you earn cashback for the purchases, and then promptly returnget refunded for everything? Could you theoretically get your money back AND keep the cashback? Has anyone done this? Can the bank verify that youre doing it and penalize you?  <response>: Every credit card Ive ever seen subtracts points when you make a return. If you could do this, everyone would be doing it. 