WooCommerce vendors can manage their own communication threads privately with this plugin. Any user who is logged in can ask a question or put any query through help section.
User will select the department from list to which he has some query and provide his email which is optional and his message. These messages will appear in admin panel and will be replied by the relevant department.
Admin can add new departments and can manage staff by department-wise. Admin can also view all communication threads and apply filters to give an alert.