My brother cannot log into the forum and his account due to a problem with acces

Hello, dear technical support.
The reason is that my brother's account was registered to an email address to which he no longer has access, due to the fact that he has been using another email address for a long time. There was no two-factor authentication. He hasn’t played for about a year and now, when logging in, he needs to confirm the login at the post office, or rather, write down the numbers in the “security key fob code.” There is absolutely no access to mail.
What he has that can help restore login to your account:
1.WTF - ACCOUNT - names of all characters.
2. several screenshots, but there are very few of them, he didn’t take them.
3. I will provide all information that will help restore access.

I respect your time and your work.
Thank you.

I'm already writing about the account details to your email - [email protected].