yo bro, UPS did the same shit to me and I ended up losing an xbox over it.
My xbox 360 broke and it was under warranty, so I contacted Microsoft and they sent me a box that you're supposed to put the xbox in... and then mail it back to them and they send it back fixed.... anyway I waited a long time, and I finally get an automated call from UPS saying this is the first time we've tried to deliver your package if you dont get it it'll be sent back blah blah... I go the VERY next day, and they tell me they tried to contact me 3 times (which is BULLSHIT) so it got sent back.... anyway I contact microsoft, they sent it back.. UPS pulled the SAME bs...... microsoft said they sent it back a 3rd time.... never ever got it... and UPS claims I picked it up.... I fucking flipped and thew a bunch of shit and left.... hate UPS so much man