Are you aware, that you need the consent of a winner to delete a giveaway?
"[...] reserve the right to delete the Giveaway" is not binding for the winner.

You can submit a ticket to have the giveaway deleted. In order for us to delete the giveaway, the winner will need to post a comment on the giveaway saying they agree to have it removed.

https://www.steamgifts.com/about/faq

Tnx For Giveaway ♥

Ty! <3

Hey, Victor! I hope I got the name right. Key activated just fine, thanks a lot for the giveaway, I really appreciate winning it!