So you were able to talk to them no? Then that means that you should show them the proof, and talk it out with them, that's it. Now if they refuse to acknowledge (if whatever you're saying is true), then just post an official scam accusation, preferably with better proof than an sc of the table, probably something like a bet history instead, or maybe a video proof if you were able to record it. Honestly stake isn't an issue here, it seems like they already said they have no responsibility for it. Talk with Evolution gaming instead of stake, stake pretty much is out of this.