I disagree I could see this could be a class action lawsuit against Verizon if this happened to several elderly people after their 911 was cut off by Verizon. I think a jury or judge would be very sympathetic to an elderly person under these facts.
But I suspect, that after you dig into it, you will find they did get the notices. If they didn't see the notices, not sure what you can do.
You said she doesn't have email or text, so if she doesn't look at her bills, how is she to find out? Are you sure they never left voice mail for her?
Maybe I'm wrong, I'm not with Verizon, so I don't know. But I'm with Ting (who resells T-Mobile), and they gave lots of notices. IIRC, even left voice mail on my 'landline' (VOIP) phone (that I gave for contact info on their site). But I have email and text and I think I got the reports that way as well.
They kept warning me that it might not work after such and such a date, but it was dependent on when the local towers got switched over, or whatever towers I used when away from home, and encouraged me to upgrade before I got stuck. I procrastinated, just switched over a few weeks ago. Never seemed to lose service, but now the old one is unregistered, so I can't really check.
It's a shame the Continuing Care Community wasn't more proactive on alerting people to this, and maybe Verizon should have reached out to places like that, to get the word out, maybe have flyers that could be posted?
-ERD50