Anyone who trying to buy the NA region SC2...
Here's the solution. Create a NA account with your address stated United States or any North America country.
You cannot use any account outside of the NA region, it will only show "Starcraft II is currently not available in your region."

I just bought the NA SC2 with HOTS bundle for USD 59.99...
For your information. after i purchase the SC2 NA digital copy, they notify me that i do not need to purchase or upgrade HOTS for other account, BECAUSE

HOTS will be officially global play for everyone at 3rd of December 2012 PST 12:00AM... =D

Hope it helps...

This post has been edited by Xenvesence: Nov 28 2012, 04:33 PM

Oppsie... I saw the wrong date.. Its 12th March 2013... XD
Sorry for the wrong peek..