...
If your site is running version 4.09+, you can reply to individual reviews and have those responses displayed on the web. The original reviewer will also receive your response via email.
To enable this option:
- In the CMS, navigate to Content → Pages & Templates.
- Find and Edit the Product Detail page template.
- Find and Edit the Product Reviews widget.
- Tick the option to 'Show Admin Replies'.
- Enter the signature text you'd like to display in the 'Admin Reply Signature' field.
- Save your changes.
...