Site closed without any notice. No response to email. All money lost. No need to prove anything to anyone.
Any allegation needs one proof at least, although the site is down/closed without any notice and you are the one here who seems to be a player in this casino and you are also the one who accused them as scam, you need to prove it. The owner of this casino tried to sell the casino since last year and become inactive after that.
Lets say you are getting scammed here, do you have any good reason to play in this casino and keep your money in this casino while the owner is not active since many months as well as you noticed the fact that the site down for so many times before as per your complaints?
As I said, no need to prove. The fact that the site just shut down and no response to emails tells me that they are scammers. You on other hand need to prove to us you are not associated with these scammers....