I logged in to my hotmail but can’t view any email because I have to verify my email with an associated email address (which I don’t remember). Need help.

What happened with hotmail? This is for another account of mine which is more important than this account. I went to a military boot camp and came back after about 3 months.
I logged in to my hotmail but can't view any email because I have to verify my email with an associated email address (which I don't remember). Need help.

I filled out the form in order to retrieve my account but to no avail. I tried everything I could.

Need help now. Is there any phone number I can call to get some tech support?

Thanks.