Lost access - don't remember Login

[Zegarmistrz]

Hello.
Tried to log in after a long absence. I know the mail and the password, but not the login I was using. Any way to get that back?
The password retrieval function does not work on mail alone unless I get the login that I don't remember :/

[EvTech]

Can you tell me the login?

[Zegarmistrz]

Sadly, I don't know the login, that's why I have a problem.
My Mail is zegarmistrzshen@gmail.com

[EvTech]

There's no account at Logon using this email.