Sportsbooks often set limits or review accounts to manage customer lifetime...

https://betmentor.com/blog/welcome-until-you-win-how-to-avoid-getting-limited-or-booted-by-your-sportsbook-976

Sportsbooks often set limits or review accounts to manage customer lifetime value (CLV) and reduce risk. To keep withdrawals smooth, ensure your Know Your Customer (KYC) documents are accurate and payment names match your account exactly