Where can I edit the Email Template?

[whmcsservices]

You can edit the email template Go to Setup > Email Templates and they you find 7  templates

WS Close Account - Account Closed
WS Close Account - Account Deleted
WS Close Account - Account Inactive
WS Close Account - Admin Log - Closed
WS Close Account - Admin Log - Deleted
WS Close Account - Admin Log - Inactive
WS Close Account - Delete Request Information