To all the people still waiting for a confirmation email from an older redemption, I received one today for a GC/Bobble head/Tshirt order from 3 or 4 weeks ago. So keep checking your email if you're waiting for the initial prize winner email.
I think everything but tier 4 is a pretty slow turn...
Last week, I redeemed for gift cards and a shirt. I still haven't received anything. On a new account, this past Sunday I redeemed for the camera and got prize confirmation 3 hours later. It might just take longer for the smaller prizes, which doesn't make sense.