Steam Key Giveaway Question

Even when you enter the key in, it still must be sent by you to the winner. You will still have the chance to make sure the winner is legit.

The winner cannot see the key before you press "send key".

You can add the key before or after the giveaway ends, if you need a re-roll you can file a ticket to support.

So it doesn't send the included key to winners email?

I tried to contact the winner, but no response so far. I'm afraid if I ask for new winner, but the previous winner suddenly activate the key... well...