Probably IF Pick & Mix one month ago (https://www.steamgifts.com/discussion/tJEU3/fanatical-idea-factory-pick-and-mix)

You could buy 5 keys of the game for 12,79€ (2,55€ / key)

If you want them to be notified of your answer, you should use "reply" on their post rather than posting like this. So they get the popup notification like you got from me now.
Also odd to see this being created 2 weeks ago and only now appearing in my wishlist list. Delayed starting date?
PS. Thanks a lot for all these changes at a wishlisted game!