so this person won the bid for a QR20 axle i put on ebay a few weeks ago. the auction ended the 5th, and i mailed it off, USPS priority, on the 6th or 7th. she still hasn't received the axle. assuming she doesn't get it by _______ (how long should i wait?) how do i handle this; refund all her money, half her money, none of her money, send her some sardines? i don't want her to think i screwed her over, but i also don't really want to lose money because USPS lost a package. i know it's the holiday season, and snappy mail delivery isn't to be expected, but it's been 10 days.