I think that such accusations are quite serious and I have not noticed that we have a warning somewhere on our website. Of course, it should be remembered that the casino always has the edge over the player in a long run. I think we have a well-written guide to RTP that might be useful at some point, so I'll add it here: https://casino.guru/learn-about-games-of-chance-rtp-variance
However, if you feel that something is going on that shouldn't be, it would probably be easiest not to play in the casino. Alternatively, if you think there might be something serious behind what you're writing and you think you have enough evidence, you could try filing a complaint, but the evidence would have to be bulletproof.
Anyway, if you just wanted to warn the players about what you've encountered, I understand. I hope you don't run into anything similar at other casinos and everything will be fine.
