Managing personal Outlook.com account settings, security, and privacy
What was the domain (the part after the "@" in your email address) of the email you used in the past? Was it something like "outlook.com" or "hotmail.com"? (Do not reply with your entire email address. Just the domain).
If so, it looks like your account has been hacked and the attackers have changed your primary email address.
-- ive tried but cannot prove the account is mine
If you have done everything suggested by Microsoft in this Support Article:
How to recover a hacked or compromised Microsoft account
https://support.microsoft.com/en-us/account-billing/how-to-recover-a-hacked-or-compromised-microsoft-account-24ca907d-bcdf-a44b-4656-47f0cd89c245
And in these articles about how to recover your account:
Account Recovery Form
https://support.microsoft.com/en-us/account-billing/help-with-the-microsoft-account-recovery-form-b19c02d1-a782-dee6-93c3-dc8113b20c42
Account Recovery Unsuccessful
https://support.microsoft.com/en-us/account-billing/account-recovery-unsuccessful-dc56c3e3-dff0-4ed5-8edb-60290eea6b53
Account Recovery Rejected
https://learn.microsoft.com/en-us/answers/questions/5539753/i-am-locked-out-of-an-account-with-rejected-suppor
Then I am sorry. But there is not much else you can do.
Microsoft Account Security is an automated process. There is no direct phone number for account recovery. Microsoft Support Agents can not unlock an account or reset your password. All routes lead back to the automated process or chat support to help you complete the automated process.
You can try Chat Support. But they will almost always tell you to use the Account Recovery Form
- Open a browser to https://support.microsoft.com/en-us/home/contact
- Tell us your problem: "Account hacked or compromised"
- [Get Help] {Scroll down to the bottom of the page} [Sign in to Contact Support]
- Sign in with a working Microsoft account. (Once you are in Chat you can tell them the actual account with the problem).
- Products and services: "Other Products"
- Category: "Manage Account Security"
- [Confirm]
- Choose a support option -> "Chat with a support agent in your web browser"