my account was hacked and the hacker instantly deleted my original Email, changed to his own along with the phone number

The only way to recover a compromised (hacked) account is through the official Microsoft website by following the directions provided this support article.

• How to recover a hacked or compromised Microsoft account

The Microsoft Account Sign-in Helper Tool for hacked accounts is your best option but it can only be used if multifactor authentication was not turned on as explained in the Help with the Microsoft account recovery form support article. You will need to provide enough information to convince them and verify that it is your account. If you have two-step verification turned on, you cannot use the recovery form
 
Your Microsoft account is linked to other devices (computer, mobile phone) and accounts (products or services) such as Xbox, Office apps, Outlook, Minecraft, Zaeem where you used your Microsoft accounte.
 
In most cases, once a hacker changes pertinent information such as the account security verification info (primary email, mobile phone number), the recovery info (alternate email, mobile phone number), security questions, the address that identified the account and password, no one from Microsoft can help recover the account for you if the above method does not work. 
 
Microsoft policy explicitly states in their Contacting support for a Microsoft Account, Account recovery unsuccessful and Help with the Microsoft account recovery form support articles.

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To protect your account and its contents, our support agents and advocates are not allowed to send password reset links or access and change account details.

Microsoft also includes this disclaimer on some other support articles.

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Along with using strong passwords, encryption, security contact information and other technology to keep your content safe and secure, we have strict policies on how our advocates can help you with your account. Only you can reset your password and make security changes to your account.