I won an games, 2x Wrath of Anna

This should help.
https://www.steamgifts.com/discussion/BXsjl/won-2-copies-of-the-same-game

Just mark the one you activated as recieved, then just make a ticket to support & a comment about a reroll on the other GA you won to notify the creator.
Hope it'll help :)

Use the search function to find this

TLDR: Ask one of the givers to re-roll.

Thanks both of you :)