Long story short: I was contacted by a buyer asking for help writing his university to request a scholarship. We talked before he placed the order and agreed on the terms. He payed for extra-fast delivery, meaning I had to prioritize his request and delay other work commitments. I sent him a first draft with some questions, he replied, and I sent him a second revised draft. He then cancelled the order claiming I was violating copyright and plagiarising other people's work.
I've never had an experience like this. Not only did I work for him to run away with it and scam me, but my statistics have now been hurt as I have a ToS violation and my order completion has gone down. I have sent a request to Fiverr for help, but I am just so so so saddened by the entire thing.
The irony of it all? He's studying to be a lawyer.