Hi LineCreature.
you cannot GA a game you won yourself. this is against the rules of the site.
read this: FAQ
you can still contact support and cancel this GA. otherwise you can be banned...
a small part:

"You should only enter to win giveaways for yourself, and if you win a game, it must be activated and redeemed to the Steam account used during registration."

Good luck, and have fun on the site.

Thanks!

Thank´s for chance.

Thank u

Thx! :)

Thanks!

Thanks