It is still not listed so I doubt the legitimacy of that claim. Probably the website and games are running flawlessly, but the claim of being a legitimate one, is actually a very bad tendency of casino owners.
You can send an email to Scotland Entertainment S.A. on "office@slotlandentertainment.com" to know the reality. I could have sent one but I will request you to do because the website thread was posted by you!
So Im thinking it will be soon added at http://www.slotlandentertainment.com/portfolio.html . But Im not sure if the affiliate program is being recognized because no link of it on the main site. Honestly the main site is poorly built.