I'm guessing they want to use someone that will track the item so they know you get it. Sucks doesn't it? Too bad I didn't know or I would have been willing to help you out, but I've already ordered my poster.
Oh, just for some comfort, I ordered mine last week, the tracker said I wouldn't get it until next Friday. They could have dropped it in the post for cheaper and I would of had it a couple of days later.