I'm not defending Stake.com but I also sent funds to a wrong address and they have stated that they cannot recover it, all exchange and gambling are stating that in their deposit page and on their terms that sending coins to a wrong address cannot be recovered,
It will breach all their security stuffs if they will do such thing just to recover that coins on such manner, that's why every deposit and withdrawal page there's always a warning with bolded text that they will hold no responsibility once the user did copy or paste an incorrect address.link conv support web
https://imgur.com/a/TJmi1aE