OnStar Module Failure - software recall?

About a week ago my android would not connect to my 23 Trailblazer. I kept trying to connect throughout the day and decided to wait until I got home to connect it using a USB cord. Did that, it connected to Android auto, I was able to use my Google maps, all good. We commute 5 hours round trip a day for work so we always use the Hotspot. When I say we, it's my husband and 11 year old son. Everyone has been complaining about the Hotspot but I guess I really didn't read more into it, until now. I noticed a few days ago that my vehicle diagnostics weren't updating on the Chevy app. I googled and tried all the "fixes". Force stop, uninstall, reinstall. Turn your car off, turn it on, blah blah blah. Nothing worked. I finally called and was told that the plan I had was no longer available so that's probably why I was having all these issues. So I signed up with a different plan and called it a day since it was already 11 PM. So today, I go out to my car and try to connect to the wifi, which is a possible fix for the app not reading diagnostics. The OnStar button is not lit up at all, wifi Hotspot says that I need a data plan, which I have. Call OnStar and she says she can't run a diagnostic on it at all, she tried 3 times and couldn't get it to connect so it could be the module. How in tf do they expect people to spend $700 to replace this? Not to mention that my keyless entry fob barely even works. I can normally lock my car from inside my house, from inside my work, 2 blocks away and now I have to literally be standing next to it for it to sometimes open. Most of the time I have to use the button on the door to open it. We're talking basic features, safety features, because I want to be able to quickly unlock and lock my car if I need to. And after they changed the wifi plan, I all of a sudden can't access anything? And I'm a CHEVY EMPLOYEE! And NO, I don't get a discount on parts or labor, I'm just a regular person when it comes to needing work on my car. And all the rep at OnStar could say was oh, I really hope it's not the module, but it does sound like that's what it is and I'll have to escalate this. Biggest crock of bs and scam.