Viewing post in Miyumi Gaiden: The Demon Tower comments
I'm sorry to hear that you got relatively scammed hard since Olivia stopped updating MV plugins, and by proxy most of the bugged versions in her game plugins were really borked beyond repair. That being said, this type of searching can lead to a lot of questions being asked about the validity of your source being found and taking it out on my project isn't really benefitting you in the long run both reputation wise and as a gamedev wise.
Its difficult to ask for a refund of something you bought yourself. You should have noticed/asked anyone first if the plugins were updated before trying to buy something that has no frequent updates/maintenance done on the clock. Especially from Olivia who now moved on to MZ and Visustella as a whole.
Your best bet in having your pleas heard would be to visit their discord server and file a sort of message there. If anyone is willing to listen to you, that is. https://visustellamz.itch.io/
Please do not discuss this any further. This is not related to the game at question and honestly, if it were up to me, I would report this as irrelevant/theft of source as a subject point.