Like many of you I excitedly went online to get my redemption code for my rMBP. But when I went to redeem it in the App Store I get a message saying it was already used. A long call to Apple Customer Care - 30 minutes of trying to work it out - ended just know with, "oh, none of the "up-to-date" codes work, you'll get another code within 72 hours". This sounds very specious to me. Has anyone used their codes successfully? I have a hard time believing that none of the codes work.