Sportsbooks set limits and review accounts often due to customer lifetime value...
https://betmentor.com/blog/welcome-until-you-win-how-to-avoid-getting-limited-or-booted-by-your-sportsbook-976
Sportsbooks set limits and review accounts often due to customer lifetime value (CLV) and risk management. To avoid delays, always provide accurate KYC documents and ensure your payment details match your registered name