Contact Mojang, they are the only people that can help with account issues.
Whilst your waiting for the reply, I'd like to see if anything could be blocking you reciving the email:
HiJackThis is a program that will show us a basic overview of programs running on your computer. While it does sound scary, it does not give us any personal or sensitive information.
HijackThis as Administrator, choose "I accept", then "Do a system scan
and save a log file". After a while a text file will open. Copy
everything, put the log on https://paste.ubuntu.com and give us the link.
I do live support at:
My discord: Morpheus#4493