I would like to try your sportsbook , but I wouldn't use any account with such ridiculous limits honestly.
There are places where one can bet 50k on Italy Serie A on the match that I sent you a screenshot on ,while your sportsbook is offering only 490USD , so I can only imagine what the limits will look like on more minor and less popular leagues/events
If there is any chance you can give access to us members that want to bet on your sportsbook but with NORMAL limits , can you specify what do we need to do in order for you to know that the bettors are "genuine"?
It is true that you can find many places that offer these high limits, but you also have to take into account that in these places they will ask you for KYC, so everywhere will have advantages and disadvantages, I think that the casino is very correct in setting these limits because they do not intend to ask for KYC, anyway I think that if you are not satisfied with these limits, it is better to play in other casinos that have limits to your liking.
If you want such high limits you can try Stake, for instance, the stake is among the top cryptocurrency casinos that offers players so much freedom to withdraw any amount, although stake is strict with its verification process these days which means that Stake can ask for you to verify your account at the point of creation so that means sometimes you have to hand them over before you even be able to make deposits, but in the past, I have seen a player on the stake that withdraw 150k without KYC demands but that was a long time ago.