Edit Email Text

Hello,

I would like to edit the text in emails, for example, this email was sent to a vendor today:

"Congratulations, your application for getting a vendor account has been approved. Once we review you accont information, we will publish it on our website."

Accont needs to be corrected, but I cannot find the correct way to edit it.

I've tried: Administration->Notifications->Vendor notifications

I've tried: Design->Templates-> /mail/templates/etc

Please help.