Well, the bid is at 303, so if nobody else bids, you will only end up paying 303...not 500. In this case, you will recieve 20 cards. IF your 500 credits are charged that will be 25 cards.
All of these cards are my husbands cards. He had me post the auction. When he wakes up, I will have him discuss it with you. I don't want to start making deals with anybody without him.