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 practices, but when the FCC gets involved, they are facing potential fines of tens of thousands for each infraction, so they'll bend over backwards to get you to drop the complaint.
Try it sometime, it sucks that it's necessary, but you'd be amazed at the results.
The sad truth is that these telcos will systematically screw millions of customers with shady fees and fraudulent billing practices, but when the FCC gets involved, they are facing potential fines of tens of thousands for each infraction, so they'll bend over backwards to get you to drop the complaint.
Try it sometime, it sucks that it's necessary, but you'd be amazed at the results.