I saw this on Whirlpool as posted by svale. Its a way to avoid paying the regional price gouged price of $79.95AU with afew simple clicks.
"OK, for all those wondering how to purchase it in SGD. See below…
- Log into https://us.battle.net/account/management/get-a-game.html
- Note that the balance on the right-hand side most likely reads in AUD, as does the price of Diablo III
- Click Transaction History > Balance History
- Select US Dollars from the currency drop-down menu
- Click Games & Codes > Buy Digital Games
- Diablo III should now be listed in $90 SGD (i.e. $69 AUD)
- Continue ordering as per usual. The game version is Global, so you're not getting a Singaporean version here.
No idea how long you'll be able to do this for, so get in quick"
+1'ed. Just coz. :-)