Was able to claim a key on mine, hopefully the people I gifted to are able to do the same.
Gamersgate is a mess. Remove it from a bunch, make it work properly for a bunch, and apparently keep the status quo for a bunch more.
Yeah they haven't handled it well, but then I'm not sure there's anyway they could have come out of this in a good situation. If they just allowed all the purchases to stand they'd have lost a lot of money. If they recall all the games genuine customers, and opportunistic buyers are angered. If they do half and half everyone is angry, which is what they've ended up doing.
I don't think it helps they kept selling Borderlands 2 and the 4-Pack AFTER the incident - clearly they had keys, but had pulled them so people couldn't redeem. Claiming 'technical' issue is interesting, as really no-one can prove otherwise (though with their track record this sales of mistakes it isn't a one off).
I'm not angry, as I got a refund, just confused as to how some people were refunded and others kept their purchases. I would have liked the 4-pack to get friends playing, but it's no major loss. I strangely had 1 copy of Borderlands 2 on GamersGate this morning, which I was able to redeem a key for... which only confused me more. I've donated that to the Wishlist giveaway.