i did a search and couldn't come up with anything unfortunately. i could have sworn the case involved austrian-bookmaker jokerbets, that disappeared for a while (and actually came back later), but the thread must have been more than one, maybe even two years ago, and i'm not even sure on which forum it was.
i did actually recall there's not really a gambling board in austria, but regulation is done on a regional level by the government. so even if i would have found the thread, chances are it concerned a different region alltogether. europlay does mention at its website it is legally based in graz, which i think is in the district of styria (but i'm not austrian, so i could be wrong). the district does seem to have some sort of a website
http://www.verwaltung.steiermark.at/, but no mention of gambling regulation there in either english or german. anyone wishing to pursue it could use it as a starting point though, altough i'm sure it would help if you would speak german.