Finding Email/Username Associated with WordPress Site

Hi, I am redesigning a website (see URL) and the client cannot recall the username or email address used to set up the site. We have tried logging on WordPress with 2 different email accounts to no avail.

Can WordPress Support moderators find the associated username or email address for this site, so I can request a password reset? I am posting this from my personal account, not the client’s.

Thank you for your help with this!

The page I need help with: [log in to see the link]