Regional FlagBetas are not guaranteed to work for allSource
Customer Service Target Source #1 - 2012/04/26 03:06:00 PM "A
real beta rarely works, and when it does, it doesn't work well."
Unlike a lot of companies who invite players into "betas" that
are little more than game demos of stable preview builds,
Blizzard brings in players to an ever-changing process where our
programmers are constantly making changes to the "guts" of the
game.  What does that mean for you?  Betas are not guaranteed to
work for individual players, ever. It's entirely possible that
some users will receive a beta invite, only to find that they're
never actually able to play it. This is simply the nature of a
true beta. While we'd prefer everyone to be able to have a
little fun while helping us test the content and servers, the
purpose of the beta is to prepare Mists of Pandaria for launch,
not to provide a gaming experience for beta testers.
Additionally, because of how quickly conditions change in a
beta, it is extremely difficult