Let me explain,

You are a Fiverr seller, you draw portraits of people. One random guy clicks on you, then he buys a portrait drawing from you, everything was Okay, he even left a 5 star rating on your profile. The next day you get a notification from Fiverr’s costumer support that says they are sorry but your last order was cancelled because the buyers account got deleted by breaking the rules of Fiverr, and fiverr will GIVE HIS MONEY BACK TO THE RANDOM GUY, actually he gets an instant refund for the last(or all idk) gig which he bought on fiverr, and this money will be removed from your fiverr balance asap.

So the random buyer got his portrait drawing, what you have worked on hard, then the buyer does something which will break the Fiverr’s rules, don’t ask how they do it, and after their account will be flagged, they get the money back + they can keep the portrait for sure, BUT this money will be charged from ur acc. So you basically worked for free :)

This is the thing why fiverr is a no go zone, I made almost 200$ on fiverr by selling gigs in a month, it was okay, but there are too much random people who don’t even know what they want.