entering into a bid is a binding contract- not a casual impulse.
also note:
YOU WILL BE BARRED/BLOCKED FROM PARTICIPATING IN OUR FUTURE AUCTION/SALES if you:
1) interfere with an auction/sale by any means such as submitting false bids.
2) fail to pay for an auction/sales that you have won worth $40 or more.
3) fail to pay for two separate auctions/sales that you have won- of any value.