It's very annoying that someone can donate a few bucks to my Mastodon instance, and then file a credit card dispute with a $16 (!) fee attached a few months later. It's even more annoying when they do it 5 different times.
If you need your pocket change back so badly just tell me and I'll send it back. What is the purpose of charging me $80 to return like... $20 total? 😬