I have a Nexon account someone hooked me up with for DNF, and I would like to play Maplestory too. Problem is I need to log in Maplestory with an E-mail.

I have looked around and all I can come up with is some E-mail thing (used to login all Nexon games) on the Nexon account page. Only problem with that is I need the name that was used to sign up with the account. If this is what I need... is there a way to find the name used to sign up the account?