> I am not much of a privacy person but I feel completely abused in this situation. I have opened a support ticket with screenshots but there is no response, and according to Twitter they are essentially not reviewing tickets from free users at the moment.

Important thing here is, you're not a customer.

> Are there other, more privacy oriented transcription services anyone can recommend?

Probably not, since this is probably a bug that can affect any of these applications. And privacy focused apps are a niche and a niche that isn't that much fun to develop. The nature of these apps lean towards people who aren't privacy focused since you would be allowing a third party to listen to calls which is the opposite of privacy. You don't need a more privacy focused app, you just need another app and probably to become a customer so you can get the support you clearly want.