Sagecity

Hello there! I had a very long break from WoW, even longer from this server in particural. The issue is I cannot login into my old account cause... yeah, memory loss - I cannot recall the username. I know my email adress (probably the password too) just not the damn username. Is there anything that could be done about it? I really don't want to start over again. Any informations about my issue will be much appreciated, thank you!