Yes it is possible. As long it was real and it was a bad review without any good reason.
Did you have screenshots of the buyer saying ‘ok thanks’ , any sort of screenshot that shows that buyer is good with it or messages of buyer stating ok or something of that type? If there was, best to include it as well.
I can’t help look into it sadly so you will have to wait for DarkKnight.
Just do take note it might take a day to a few days for a reply.
However, you should still send a ticket to Support while waiting on forums.
https://gameflip.zendesk.com/hc/en-us/requests/new
Goodluck 