Where to get Arma 2: Operation Arrowhead Keys for $10 from a Offical site

Hello everyone Ive been told that there is A Russian Site where you can Buy Arma 2: Operation Arrowhead Key for $10 I can't seem to find it i was global banned and want to buy a new CD key from a Legit source.

Any help would be great thanks alot

$20 - 20% = $16

ARMA II Operation Arrowhead | PC game | Download discounts at Green Man Gaming

20% off code - PCGMR-GREEN-SUMMR

BTW you won't find a legit Operation Arrowhead key for $10. Only grey market keys will be in the $5-10 range.

BTW GreenManGaming is like steam. So not only will you get a key, you will also be able to download the game as well.