Username forgotten

[Chitpaseuth SOMPHET]

Dear webmaster,

My name is Loma, my email is 57.loma(a)gmail.com
I registered the fedora account quite long time ago. Now, I want to apply
for the fedora campus ambassador but the problem is i forgot my username.

I tried to registered the new account with the new username and same email
address but the system didint proceed.
So, I was wondering are there any way i can use my account again with my old
email address?

Regards,
Loma