- Yes, definitely trying to buy after clicking the "shop now" link. Just in case it was an issue with "buy now" vs "add to cart" on Eneba, I tried it both ways there as well.
- Tried Incognito on Chrome, and InPrivate on Edge.
- North America
- Initially, Persona 5 Strikers. However, I have since run the test on other games selected at random from the GGDeals front page.
However! I just tested using a VPN based in Europe, and the code works, just as it did for you. I won't be making a purchase that way since it might get flagged as abuse or somesuch, but this at least narrows it down to a regional issue.