Uh, actually, the point I tried to raise here was the exclusion of casino into the calculation. There was a past case with a casino [I can't remember which] where the player faced "similar" situation, in a sense that they can't withdraw due to rollover requirement [can't remember either whether they got an involuntary bonus or it's a simple AML situation], and the casino rep suggested low-risk casino games with low odds, so I assumed that low-odd betting on casino games is something that casinos allow, to facilitate the rollover requirement.
I find it quite odd that this casino [their involuntary bonus aside] didn't include casino games into the wagering calculation.
In case OP hasn’t explored all the emails yet, it might be worth a shot.
I'll try to send their rep a PM, see if they'll address to this matter. Can't promise much, though, as they don't assign any personal contact to me, and their account has been away for almost a month now.