Earlier quoted context omitted.
The quickest way to resolve all of these billing shenanigans: file a consumer complaint with the FCC. Magically, you'll almost immediately get a phone call from someone fairly high up in the company (typically executive relations or similar) that has the power to fix things and will make it right. The sad truth is that these telcos will systematically screw millions of customers with shady fees and fraudulent billing…
Don't forget your state's public utility commission, or equivalent, too.
https://publicutilities.utah.gov
I've reported to them in the past for things Qwest did. Seemed to be effective.