This is what charge backs are for FYI.
“I’m sorry, but you failed to provide a service. Either give me a full refund or I will start the charge back process with my credit card company and you’ll be forced to explain why your refund policy violates their ToS and any penalties that arise from that process.”
“AI” text prediction runs locally. Microphone is for voice to text functionality.
As for the keyboard itself. Ehhhhh. It’s lacking UX features to make it actually usable. I dailied it for a month and had far more typos, text prediction broke whenever a number or symbol was fat fingered into the string. Finding symbols you need was worse than gboard & SwiftKey.
I really want there to be a great open-source keyboard, but none actually deliver on UX atm.