Hi there is there a way to report a seller who is using other people’s work and selling them to buyers? I had someone create a pixelated banner for me and when they sent me the work I immediately recognised the background they used from a tumblr post and cut and paste characters they used from various games.
You can submit a ticket to Customer Support and report the seller to them.
This post explains how to do it: http://forum.fiverr.com/discussion/how-to-submit-a-support-ticket/
Customer Support filing a ticket will help you.
Had this happen to me various times.