In that environment what are the odds of losing 11 in a row? 17 in a row? or 6 out of 7 bets repeatedly?
No one can say as each bet is following a certain random algorithm.
It will really create doubts about fairness if someone got hit 5 times, 10 times, 15 times losing in a row but as mentioned above, if we are able to verify those bets are true then we don't have a choice but to accept the loss. That's how risky dealing in a gambling game against the house.
I advise you to learn how provably fair works so that you will be aware of those.