What kind of evidence do you need?
I try to contact live support, but they tell me it is closed, with no funds return.
how about the screenshots of all the conversations you've had with their support? also, I don't know if it will show on your betting history but if possible you should also show the transaction of the bonuses you bought while playing on their slot games.
I have the email reply from the support team, but it is not english.
Everything I described here all true, the bought bonus games are in my game history, I can provide it.
Don't worry much about language barrier. Google helps us a lot with it's Lens app. I'll "translate" it for you if you upload them here while quoting for visibility at the same time.
Meanwhile, though it's probably too early to bring the big gun...
yahoo62278, paging you to bring this to your attention, just in case we need you to do us a favor by reaching the owner, suppose their rep doesn't pop in here within the next couple of days?