You mentioned buying them on eBay. It looks like they go for about half price are there, about $30 each. Do you then try to get the reimbursement for the full face value amount? I would understand why they make that rule then to avoid people gaming the system. It ruins it for everybody.
If you are just being honest about it and trying to get refunded the amount you an eBay seller, how do you designate how much you paid for it?