IntKeys Game Keys

Fantastic, if you know what you're doing.

Fortunately, there are multiple youtube guides on how to do what you need to to redeem your game. It looks as if a lot of people here didn't understand what that entails and unfairly rated a system they've misunderstood. Took about 15 hours to get my key, but that's okay, as they said that it could tak up to 24 hours. All in all a pretty solid company.