Well, Best Buy decided to be a jerk and not give me a Kessler skin despite my pre-order ticket clearing stating I got one. First they claimed it was in the box, but that was in there was the Uncharted 3 beta. Then they say I needed to pre-order the Hero Edition, but again, the ticket claimed I didn't have to. Finally, they said the vouchers were first come, first serve, and I should be happy to have the game. At this point I argued that if that was the case, there was no reason to pre-order there at all. Thankfully, despite the opened copy, I got my money back.
More annoyingly, I hear from people who were lucky enough to get theirs that it seems I was either supposed to get my voucher from the cashier when I first pre-ordered it, or have it emailed to me after (and they had my email address). Of course, I wasn't given anything but a receipt (which only had codes for surveys), and no one there could tell me that it was an email thing.