I was on the same boat, but changing the appstore country is a small setback to be able to play this great game. Just change to US and you will be able to download the game. The patches aren't as frequent now so it's not a big bother.
I did that for a bit for TB1 and a couple of other games. But I kept getting requests to enter my iTunes Store password all day. I'd enter my password and an hour later I'd get asked again. The only way to stop it was to wipe the phone and set it up as new and only use my primary apple account.
