Chat changes our drafts when converting to HTML

I’ve been using Chat premium for a while now. I draft what I need into chat, tweak and reconfigure as normal but when it comes to converting this well-honed and finely-tuned draft into HTML, Chat is always changing it. Every damn time.
Sometimes it truncates sentences. Sometimes it leaves out sections altogether.
I have asked it to stick to exactly what’s written word-for-word and to prioritise accuracy over speed.
Nothing seems to work and things keep to be deteriorating. As I said, I’ve used this method for months, but in recent weeks its become intolerable.
I’m paying a lot for this but, as it stands, its not fit for my purposes and I’m losing both time and money as a result.