Ending an Auction early? V8 Centerlink needed asap?

I feel the same way-thats one reason why I will not end early. If I get "I did not see your item until it was to late can I buy it now" email I tell them (politely) that I will be happy to re-list if they will place a bid with in 48 hours and if they say "yes" but do not place a bid then I lock them out from all my auctions.