Most casino companies are scammers because it's only when you win a huge amount that you will see them bringing up too many rules,  terms and conditions you breached while gambling on their site which they cared less about when you had little or no winnings but as soon as it involved huge amount they now start coming up with different stories and it's unfortunate that to fight casino companies is very stressful because you will be required to show a lot of proofs as evidence to show that the casino didn't pay your winnings so the best way to stay out of manipulations from casino companies is to stake little amounts and also aim to win little amounts then you won't have many problems with casino companies.