To clarify, is your account deleted or disabled? Your title said "deleted", but the opening post said "disabled", and those two terms seemingly used interchangeably and loosely throughout this thread, even though there is a huge difference between them.

To have an account deleted means it got completely removed from the service, access is permanently revoked and there is no way to recover the account.

To have your account disabled means they temporarily restrict access to your account, usually until some actions from your side are taken, and you'll regain access once everything cleared out. There are several possible reason that pushed a casino from taking this action, ranging from having their KYC check, a request from their game/sport provider for investigation, to something as simple as they trying to secure their player's account on the player's behalf, maybe from an access from unknown IP, or perhaps [if I may ventured a guess for your case] an accidental click to cancel withdrawal instead of the approve button upon email confirmation.

I see that a screenshot of message saying your account is disabled [or deleted] has never been provided on this thread. Perhaps you can supply us with it? It'll clear up several things.