I pre-ordered the game a while back, and recently decided to buy a 4-pack to gift to friends. I asked a dev in IRC if that would give me 4 gift keys rather than 1, and they said yes. Unfortunately, I only got one gift key, and I'm guessing I have to claim it before I can get the other 3 gift keys. Except I already have the game. Is there any way to get 4 gift keys, rather than one key to claim the 4-pack?