When picking a regulated online casino in the UK, start by verifying the UK...

https://online-wiki.win/index.php/Which_UK_Casino_Platforms_Are_Known_for_Being_Straightforward_and_Not_Cluttered%3F

When picking a regulated online casino in the UK, start by verifying the UK Gambling Commission licence to ensure safety. Look for clear payment security measures and easy-to-use responsible gambling tools such as deposit limits and self-exclusion options