There is no advantage to you by offering free editing.
A buyer has to order and pay before they can leave a review.
Maybe offer something extra instead.
Make sure to read the updated Terms of Service at the bottom of the Fiverr main page for the rules as to how Fiverr works.
Everything is explained there in great detail.
Thanks For Your advise lloydsolutions !
Improve on your response time. Who will wait 4 days to get a response to place an order?