Isn't this part of the same ring of casinos under the same domain as vegascasino, sportsbet etc?
If it is then that is just sad and anything to do with bitcoin casinos and .io domain should be instantly revolted against and seen as a possible scam being run. You should be aware and not give even an ounce of you bitcoin to them.
Bitcasino.io is super legit and have been for years.
Vegascasino.io is legit as well but I stopped using them because of some minor but annoying BS they pulled.
Seriously though, bitcasino.io is my casino of choice. I've received free promotional items in the mail, received an Xbox one (plus 2nd controller and battlefield) for my vip gift and I've received all sorts of great promotions and bonuses.
I doubt that bitvegas.io casino is in any way connected to CoinGamin (Bitcasino,Vegascasino) this is first time I see someone mentioning them, they are not present on most bitcoin casino review sites.
Domain has nothing to do with casino legitimacy.