There's a previous thread where the gambler told he won 550.000 Doge
ltccasino big win in Booming games assuming he didn't comeback to the thread, he's fine or just paid shills.
AFAIK this casino is really anonymous, means you don't have to submit KYC, can using multiple accounts, VPN etc. So if they ask you to provide such requirements, it just defeat their own rules.
I leave neutral tag and hope they will respond in this thread, otherwise I will update with negative one. Also there's no proof about your accusations.