Losing 10 times in a row at 67 % winning chance seems somehow impossible. 0.002 % chance to hit that, and that is no must, seems legit. to hit that, if it is somehow good for the bank ever and ever again is suspicious. and those losses stumblin around 10 and 30 seem planned.
Another newbie without any proofs talking if he get scammed because losing 10 times in a row at 67% win chance?
To be honest i never had that losing streaks, the longest i've had only 7-8 streaks loses at 70% but anything can happen in gambling.
0.002% chance to hit it still possible, because you could win at 0.001% win chance too when you gamble.