INCORRECT “iCloud storage is full” message

An inaccurate “iCloud storage is full” pop-up message (over 2 GB still available) is still appearing every 6 MINUTES(!) when I type something in Notes on my iPad mini. (See image below.) When I close the pop-up, it takes me back to the beginning (or occasionally the end) of the note instead of leaving me at the place I left off.  When editing the middle part of a long note, I have to do a lot of searching to find my place... and then it does the same thing again a few minutes later. I use Notes more than anything else on my iPad, and I will never buy another Apple tablet until this is FIXED!

This is clearly a way to try to force Apple users into buying something they don’t need, but many complaints say buying more storage doesn’t stop the pop-up.

There have been hundreds of complaints about this problems dating back to at least 2015. 

1. Why has Apple not yet solved this problem?
2. More importantly, why has Apple Support not answered any of these complaints in OVER FIVE YEARS?!! This is NOT “support.”