Client’s request to respond through chat/text

Hi Everyone,

I’ve scoured the internet, but can’t seem to find what I’m looking for.

Have any of you ever had a client requesting meet through telehealth, but they will only respond via the chat feature?

By the way, it’s a physical impairment and not that they are unwilling to speak, and no issues with comprehension. I know under ADA, we are to provide reasonable accommodations, but want to make sure there are not ethical or practice qualms as far as being able to effectively engage in treatment.