Unfortunately, the only way to close a bid early is through GIN (get it now) and lowest amount one can gin for is 2000 and I can't place gin on an auction with a bid already. Also I tried putting gins on 2 auctions for codes and no one used them. I get charged 50 credits for putting a gin on it and no one bid and I lost my 50 credits on one and on other I only got the 100 credits and not gin so I lost another 50 credits. Several tried gins but I only saw one that got the gin bid of 2000 and no one else so gin isn't worth it. Most bidders who want codes don't want 15-20 and don't have 2000 credits to bid with to get them. Sorry. I hope others bid so winning bidder can get more than one. Meanwhile you can bid on some of the other auctions for now if you have more credits. Good luck! : )