Hi, you do realize that the giveaway ended a bit more than an hour ago, during which I wasnt online which was probably marked on my profile as well.
Also by guidelines, in the winning section:
Allow the giveaway creator one week to send the gift. Please be patient and do not contact them during this time. If the gift is not received after one week, you may contact the giveaway creator on Steam to follow-up.

Regardless, I am online now and since you dont have any unactivated or double wins, I have sent the key.