Managing personal Outlook.com account settings, security, and privacy
Account recovery is an automated process, even if you can contact Microsoft Support, they cannot recover your account, they will just refer you to the account recovery form.
I wish I had better news,, when a Microsoft account is hacked, if the hackers change the associated data like the Email, then that account is usually no longer recoverable, this forum is just a user to user account and no-one here has any account access, try using the process they provide on this link to recover a hacked account, if this process is not successful, sadly, that account cannot be recovered.