Can't the seller just relist and the buyer click take offer and the seller and buyer then leave feedback?I Tried once to get a guy to agree he won a aucton from me and he would not.Turned out bad because of it and other reasons.I also had different sale that I traded and it went past the date for the same reason as yours. He just relisted it and did the feedback swap on the duplicate listing.As I see your a good member and have dealt with a couple good people I don't see why you just can not relist it where it says duplicate in your sellers form.I think the feedback is important weather you have a good experience or not.Ofcourse your going to have people you disagree with and they disagree with you.That don't mean your bad or they are bad.Sometimes people just dont get along.I can not see from any of the corespondence from you I ever had anyone would leave you a bad comment nor would they have a problem to take the time to relist they made a deal with you and leave you good feedback.I would just ask to relist and click take offer then leave feedback.