As far as the anti-money-laundering limits go, a lot of it has to do with the industry you are in. For example when I worked at Betfair and subsequently Unibet, there was a constant emphasis on meeting obligations around anti-money-laundering legislation.
Obviously gambling is seen as a high-risk area area for money-laundering, especially Oshi, being a Cryptocurrency casino.
As I understand it there is no single rule about transaction size. I think it's more to do with perceived risk of money laundering happening. And bear in mind that if we or other casinos like us are investigated by one authority or another, it's because they believe they have sufficient reason to do so. I don't want this kind of investigation and therefore we are thorough about 'know your customer'.
You follow the AML laws of which country? Can you please quote those laws?
Authorities never ever controlled any gambling shell company in Curacao, so you must refer to another jurisdiction?
And does it make us money if we 'know our customer'? No it doesn't. Why? Because we don't seek customers from jurisdictions were not licensed for and so:
a. It's unusual for us to find customers from jurisdictions we can't serve
b. Following on, we rarely end up withholding winnings from these people, because they're rare in the first place.
You never control anything if customer lost and will not give anything back in such cases, but control and confiscate balances if customer won.
This behaviour obviously brings you a financial advantage and a disadvantage for your customers!