I am a regular user of https://sportsbet.io/, So far it's good. It's very trusted and deposits and withdrawals are very fast. They are also offering a lot of games.
Without KYC am using this website, But I have read There KYC Policies, Privacy and Management of Personal Data. If your Deposit amount is so big they can be asked for a KYC document. If they asked, you need to submit those documents. If you don't agree, they can block your account. So before making any deposits first read KYC Policies, Privacy, and Management of Personal Data.