Account Recovery

Hi Community,

We are a small startup that has been using gitlab.com extensively for hosting our projects. We had created a superuser for which we have forgotten the password. While we do remember the username, we do not remember the email id with which it was created. (Our mistake, the person who created it has left and it was missed in KT).
Is there a way to know the email id associated with the username? In that case we can recover using the email with help of our email admin.

Is there any way to recover the account if we know the username only?