How do you win and lose?
You should have posted a screenshot on those chats, I noticed this several times but I just treat it as a series of luck and house edge coming into play, I never think of it as a sort of manipulation, for me there are days where anything you do leads to losses and there are days whatever you bet you win.
How I win depends so much on my luck in luck-based games and on sports betting it's on my analysis, if my analysis is good I have a good chance to win and make money, that's all there is to me, if I think there's manipulation I have to feel it and I should back it up with proofs.