If what they did was illegal and against city law then the contract with flock is not binding anyway. A bookie can't force you via "the legal system" to pay him

If what they did was illegal and against city law then the contract with flock is not binding anyway. A bookie can't force you via "the legal system" to pay him back for a bet you made since gambling is illegal. However, he has the option to hit your knee cap with a ball peen hammer until you pay up, also not legal, but effective. Not sure if Flock has similar remedies.