Ken sent me.

Game has been sent, congrats to the winner.

Hi.
Steam:
"The product code you've entered requires ownership of another product before activation.

If you are trying to activate an expansion pack or downloadable content, please first activate the original game, then activate this additional content."

Support Steamgifts:
"Hello mazafaka.

Please leave a comment on the giveaway page to explain the issue to the giveaway creator.
If they do not provide you with a valid copy of the correct game within a week of the giveaway ending, mark the giveaway as "Not Received". Do not accept a different game.

The giveaway creator might request that we delete this giveaway if they are unable to provide another copy, but they would need your permission to do so. Please state on the giveaway page if you agree or not"