So here is what I got:
My name is Randy from Blizzard. I'll be happy to assist you.
Right now, with the Beta, there's no way to switch regions. Once the full game comes out, you will be able to select your region just like with our other games, but until that time, it's locked to the region set on your account. The only way to really fix which region your Battle.net is set to would be to set up a new Battle.net account.
If there's anything else I can do for you, feel free to reply directly to this e-mail and I'll be happy to assist. Alternatively, contact information to reach our Billing Center may be found in the link beneath my signature.
Yeah so what I didn't get was choosing your region thing "like other blizzard games". What did the guy mean, does it mean once u register it they ask you which region do you want it linked to or something like that? Just wondering.