If you have repeat customers, you will see a "Contacted Before" notification next to them under the Contacts tab.
To identify customers who received a review request, but did not fully interact with it and clicked on your review website, click on the Filters button, and select "Not fully interacted" under "Contacted before".
All customers who have indicated a negative experience, provided feedback, or are in active campaigns will also be excluded.
Now, you can filter only repeat customers that did not click on your review website to resend a review request.