It was awhile back when I read a way to retreive Email info.
The process was something like:
Login
Charge Nx screen
select pay online/pay by cash
and it would show you the email registered to the account.
I did try on my own but I couldn't get the email and figured I was doing something wrong, hence the thread.
Thank you EL_PACHUCO, _InstincT and, Futile Resistance for your replies.
and EL_PACHUCO it's for one of my older accounts that won a nexon event. Since nexon likes to spend weeks before awarding prizes I kinda lost the account info. (prize was sent by email coupon)