I’ve an experience. Till this happened to me, I have never thought about this issue.
I did a work and get a low rating. Buyer never asked a modification or contacted to me that he did not like the work. It was a work that replacing buyer’s photos with template video. I never care about ratings anymore.
Days later same buyer came again and ordered same gig again. I’ve asked that you did not like video and gave a low star with a negative review, now you wanted same video with different photos. His reply was that there were more than one people use same account. He liked the work but maybe one of other person gave low rating.
Hmmm There is a Fiverr account and more than one person use same account. The weirdest thing is other users who use same account can rate, review or maybe reject, cancel the order which they did not order.
I’ve reported that account and asked for if there was anything to do with review by the person who does not order. (I’m really not sure who has ordered and than who rated I’m confused after buyer’s messages.)
CS reply was; “Keep in mind that it is not against our TOS to have more than one person on an account.”
And reply for removing review was; “Unfortunately, your request to remove this rating does not meet our Feedback Removal Policy.”
I think it should forbidden to use same account more than one real person to avoid such issues. There will always be confusions that we can not predict with such accounts.