I Hear Ya
I'm trying to get the new Kenny Chesney song, same prob.
Best I've done is go to 4G on my iPhone, no WiFi, bought it there (it worked) but now I can't get it to transfer over to my MacBook. So annoying, there are actually a lot of questions about it in the Help section of iTunes. No real answers though. A few people have had luck using different WiFi set ups other than their own, like finding a hot spot.