Can support to remind mail address to my friend, he cant join and cant recover?

#1

pls help me and my friend.
He has all access, and remember all passwords, but cant do nothing.

#2

What exactly he cant do?
If he dont know email address, support wount help him!

#3

He cant join to faceit profile and write to support, he cant recover his login bcs he dont remember his mail.
support cant to remind him his mail ?

#4

To even do something he need to know his email address!