I actually received a response from mileageplus customer service via email in about 3 weeks. They did not fix the problem, but the email says they will fix it. I am still waiting for an actual fix, but it was nice to get a response.

I have received zero responses from 1k voice and it is now 5-7 weeks after submission, so not seeing any progress there.

The phone times are getting much better. No fixes to the problems, but they do answer relatively quickly.