What you wrote is hard to understand.
You were victim of a phishing attack. Because of the phishing attach someone else got the account details and transferred balance from your account to another account?
As far as I understand, he got a phishing message to his email address from scammers, he thought the email was legitimately from stake (because of convincing it looked to him), so he endes up giving his login credentials to the scammers.
Once the scammers got into his Stake account they managed to withdraw that high amount of money out his account and hence there is nothing it can be done about it, since we are talking about an on-chain transaction.
Though, there is something in this story from Op which I do not yet understand. Usually Stake allows people to get Two Factor Authentication associated with accounts on their casino, so even if he shared his account credentials to scammers, they would have not been able to login without the 2FA. The casino also asks for the user to submit the six digit code every time a withdrawal is asked to external wallets.
Either OP was somehow convinced to disable his Two Authentication Factor from the Settings of his account or he took the reckless decision to share his Shared generating key with the scammers in the phishing email, which would be very weird to do...
