Can't Access your Microsoft account? Escalate your issue to Microsoft Account Specialist Team
If you have already exhausted all possible self-service option for your issue, you can escalate your issue to the level 2 support : Account Specialist Team by submitting an Escalation Support Ticket. This might take a little of your time but it's worth to do.
(Note: They can only be contacted through this ticket submission, in this way they can guarantee the security of your support request).
Below is the instruction on how to submit the Escalation Support Ticket.
Things that you need?
1.) Other "accessible & active" Microsoft Account. Why? Because the ticket can only be access through Microsoft account. This is the only way we can guarantee the security of your information.