Unable to "Join Audio" in Zoom Workplace

[WSMIV]

Tapping the Join Audio button brings up a dialog box that reads: "Audio Conference - Follow the instructions below to join audio conference."

However, there are no instructions anywhere. Unfortunately I cannot add a screenshot, but my mothers day Zoom wasn't possible due to not being able to Join Audio.

I saw posts about this from 2023, but I've not seen a solution.