I found this old post and it seems like most of the game will not count for the rollover and this is weird because only slots count the most. Slots have a high house edge so higher chance tol ose your deposit bonus
Heh, I got around it in the end. The poker on the website is quite easy, so I built up a bit with poker.
Then went to slots, lost some, but progressed towards the rollover.
And finally withdrew 0.19 BTC, after starting with the free 0.01 BTC and fulfilling the 35x rollover

That's the advantage of poker on the site.
The games are really easy.
A lot of the players keep shoving with sub-par hands, allowing you to make quite a bit.