Start by navigating to Reviews via the navigation bar. In reviews, click on the Import button in the top right of the section.
In the Review import, click the Add button, and log in to your Facebook page by clicking the Import from Facebook button.
After this, Trustmary will update the reviews for you from Facebook once a day or whenever you click on the Fetch reviews button. Note that the initial review import can take a couple of minutes depending on the amount of reviews.
If the button turns red and is unable to fetch the reviews, just click on it again to retry the import.