Has OP stated whether the funds can be returned to the address that they came from or not?
I couldn't find it in this thread. OP only mentioned that they will sign message if Cloudbet ask them to sign it. Can Cloudbet confirm this:
Thank you for posting the image.
The withdrawal attempts shown in the image along with dates involved put Cloudbet in a very sad and very bad light.
Selective scammers are among the lowest of the low thieves. This scam attempt has been going on since New Years Eve and Cloudbet claim there is an "investigation" on-going.
He has tried to withdraw over 330 BTC since 2nd January 2019 so 40 days ago and there is still no resolution because Cloudbet are trying to manufacture excuses to keep hold of crypto that belongs to the user.
Pathetic scammers.