If you think it's worth trying and don't mind me to try reaching them, though, please send me a PM with the contact details, I'll try to nudge them.
I have got the telegram contact of Denis. Unfortunately, he doesn't reply me anymore neither he check my message. I'll send you the telegram username shortly.
I am not saying I do or don't believe you, but I have noticed that your whole post history is basically scam accusations. I'm curious as to why you only play these small unknown or barely known sites? Seems curious that you aren't gambling on the bigger well known sites and are taking chances on these smaller books.
There are a few such users here in bitcointalk who used to take the advantage of arbitrage betting while casinos don't allow this. The proofs are barely visible sometime because casinos got accusation from their odd providers. Thus, the abusers get a pass.
My bad, I have to intention to accuse OP as abuser.