Sportsbooks can impose limits or account reviews for various reasons, including...

https://www.pure-bookmark.win/sportsbooks-often-set-limits-or-trigger-account-reviews-due-to-your-customer

Sportsbooks can impose limits or account reviews for various reasons, including your Customer Lifetime Value (CLV). To avoid delays, keep your Know Your Customer (KYC) info accurate and ensure payment names match your account