I am getting 2 copies for the PC at my local GameStop, all of which carry games for the PC. Must be something about your area.
As CCNA and Gstaff have both stated, they are checking into it. I highly doubt this will be a problem on launch day, my money is for clean activation at 1AM on the 19th (for me thats when I think I'll be home and have it installed)
Miax
Gstaff has already answered this,
"Hey guys wanted to share some info on when the game will be available to unlock on Steam, Direct2Drive, and Gamestop digital download.
On the 19th:
12:01 AM Pacific Time (PST) for North America, Central America, and South America.
On the 22nd
12:01 AM Greenwich Mean Time (GMT) for territories other than North America, Central America, and South America"
In this tread,
http://www.gamesas.com/index.php?/topic/1121111-preload-is-now-available-on-steam/page__st__80
Now, I know I'll be able to play at 2:01 AM, where I live.
cev