Well, initially the buyer agreed to trade his mags for a $200 code to the AAC store. So whatever he packed up and sent out was what he thought was worth $200 to him. OP then goes ahead and sends him the code before the mags even arrive and asked the buyer to send him pics of the mags. Buyer then discovers it's only for $100 and informs OP and demands he send the mags back and not open the box (that's weird) You would think he would give the OP a chance to figure out whats going on and fix it, at least if nothing else send him $100 bucks to make up for it. That's what I don't get, why he all of a sudden decides to renege on the deal, seems like maybe he had some buyers remorse on the deal and used this as an opportunity to weasel out of it instead of letting the OP correct it. The OP gave him every indication that one way or another it would be made right.