Fiverr had no value for buyer just for seller.
One of my client had order me to design site for him. With a time client called me to team viewer and told me to upload here site on hosting server and i upload it. before 5 days he told me everyday a new tasks of lists.
I had told him that i will try my best to full fill it. When delivery time came i forget to add screenshots for prove and tell him that i will deliver you soon because delivery time going late so i place to delivered.
And After few hours i was out and when i opened my Fiverr I saw Order Cancellation Terms. Which i didnt Break them.
Fiverr Do what ever seller wants. But remember that without buyers you are nothing. you have to provide equality on both side.