http://bugs.winehq.org/show_bug.cgi?id=18384
--- Comment #43 from Erich Hoover ehoover@mines.edu 2009-06-10 11:02:45 --- (In reply to comment #42)
And now I get a 500 from the Windows machine I try it on, which I attribute to trying to reset my profile too many times.
I'll ask Blizzard tech support about it.
If it's being blocked b/c your account has been locked for some reason then that's not a problem for our purposes (obviously you want to fix it though). As long as the data it sends to Blizzard is still correct (and there's no reason it shouldn't be) then if you log that data we can figure out why it's different under Wine.