Sportsbooks often set deposit and betting limits or conduct account reviews...

https://elliotsmasterchat.wpsuo.com/what-questions-should-i-ask-a-sportsbook-before-i-deposit

Sportsbooks often set deposit and betting limits or conduct account reviews based on Customer Lifetime Value (CLV) to manage risk. To avoid delays, ensure your KYC documents are accurate and your payment method names match your account