Sportsbooks set limits and conduct account reviews partly to manage customer...

https://josuesexpertblog.novacrestiq.com/posts/does-offshore-sportsbook-mean-i-can-bet-unlimited

Sportsbooks set limits and conduct account reviews partly to manage customer lifetime value (CLV) and reduce risk. To keep things smooth, always ensure your KYC documents are accurate and your payment details exactly match your account name