I enrolled in a cybersecurity course, and things went well for a while. I was just over half way through the course. But I was using an authenticator app to log in and didn't back it up. That's on me. When my phone died suddenly, I was able to remove authenticator access to every app and account I had except Coursera. I can't log in to finish my course, and Coursera won't respond to email requests to help reinstate my access to the course. Been trying for a week now. Zilch, zada, nada. My course is now as dead in the water as my phone.