I'd try and return it if possible even at the expense of eating the shipping (unless it was something really cheap.. which I doubt). I absolutely loved and swore by USPS for years until I sent out a package last month priority with signature confirmation. Turns out the recipient wasn't home initially but picked up the package later that day but they never updated the status.. so I had no proof of delivery (and my funds were held in paypal for 3 weeks). I tried calling them but it's a 100% computer operated phone system and couldn't talk to any human USPS employee. Furthermore, when I e-mailed for assistance, I was told only express packages have true tracking implementaion (wtf? DC and signature confirmation don't mean jack?).