Managing personal Outlook.com account settings, security, and privacy
Just a gentle reminder that I'm only a Microsoft user like you here in the community. I'm not a Microsoft employee, and I do not have the tools to manually confirm this.
However, based on the article I provided above, if the account is either locked or inactive and has not been signed in for more than 2 years, it will be deleted. It cannot be recovered, nor can it be escalated for resolution.
Best regards,
Darhyl