Was trying to reinstall Netflix app on my PC because it wasn't loading. When I was trying to login to the microsoft store to install it, Microsoft told me i needed to submit a security code they were going to send to my alternate email address to verify my identity. The thing is my alternate email is deactivated. I tried changing my alternate email to a new email but I think that made it worse because now it says someone else was trying to change my security info and even when i verify that was me they still say they need me to verify my identity by submitting a code sent to my old email that is deactivated. Now I think my microsoft account it locked out for 30 days.
Good luck. I've had nothing but terrible experiences with Microsoft on such matters.