I've had three issues the last month with idiot ebay buyers. Not a lot you can do but either stand your ground when you are correct and hope you don't get negative feedback, or bend over and take it by giving a refund and keeping your feedback hopefully perfect. I've lost over $100 this month because of knuckleheads having incredible expectations or the inability to read simple listings. Sadly its the cost of doing business on there anymore. When when they took away the seller's ability to leave negative feedback for bad buyers it instantly changed things, putting the ball in the buyer's court, and many of the buyers don't even know the rules.