I didn't actually put much thought into the refund amount - admittedly I do feel guilt for that now. I was quite frustrated at the time.
The reason I call it slander is due to the nature of it. There was an active attempt to push my name towards some individuals and a good deal of her throwing it around in her telegram and to my knowledge discord channels as well. This was going on to a mild degree about her annoyance at having to make changes and after the initial email with messages saying I was blackmailing her, and a few other more minor statements/insults such as calling me an asshole.
And, as the bottom of that journal cited, she did say that if people asked her for my name it would be provided. She has since deleted the journal it appears, though. I would say that's to her credit.