I don't see the license is mention UK in the location, the license code is GLH-OCCHKTW0701192022 and when I search on google, there's a site with Russian language [1] named club-vulkan.com is there any relation with your site?

Asking the users to complete the KYC after deposit or withdraw with aggregate 500 Euro, while you're offering 4,59 BTC jackpot or worth of 130263 Euro sounds like a joke. You're seems to suspect accounts deposit or withdraw with aggregate 500 Euro will abuse your casino, while it's just a small money for most gamblers.

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[1] https://topigr-777.ru/topcasino/kazino-vulcan-igrovye-avtomaty