Slightly petty I know but I have just refunded for return of an item that was new and had all the measurements on the listing but buyer said it didn't fit. All very well but it was listed as a BIN so cost 40p and now will cost me another 40p to list it again. I felt like knocking that 40p off the refund but didn't. Has anyone ever done that? I suppose the buyer might end up giving bad feedback so probably not worth it. Sorry, just needed to whinge!