I actually think the winner already owns this, I already sent key though.. ( Maybe he didn't have it though, but maybe steam glitch-showed that they have it?)

to the winner If the key says you already own it then just reply here and I will get a re-roll :)

EDIT: Why do DLCs not hide themselves when you own them anyway?
EDIT2: He gave me the go-ahead to reroll it on steam comments as he already owns it