Geting a promo code not found" when I try to select my download service

When I try to download my “Pathfinder: Kingmaker (PF:KM Digital Download, Special In-game Item, Digital Art Book, Digital OST)” digital bundle, I select GOG and it then says “promo code not found”, after I select “Choose Platform, Gog, confirm”.

Am I able to download Kingmaker yet, or do I have to wait until POTR is released?