BILLING DISCREPANCIES

I have made numerous attempts to speak with management regarding billing discrepancies. I downgraded services from cable and internet down to internet only to save money and my bill has yet to reflect the correct amount. Their system made an error and added a billing amount that was not mine and a ticket was created to correct and I have yet to see this reflect my account. My services were disconnected due to the incorrect billing discrepancies and the  amounts which I was obligated to pay as my son has online school and I work from home. I've requested call back from supervisors in which tickets were created for that and have yet to hear back. 

I have paid:
$370.12 on May 1st 
$225.15 on March 6th 
$43.57 on Feb 17th
$50.00 on Jan 31st
$196.57 on Jan 3rd

I downgraded my services in January of 2023 where my bill was to be $100 a month for internet only per their customer service rep. I can never get anyone to help me because their customer service reps always disconnect the line when I call. Even the follow up call after rating the service call a 0 - that rep disconnected too.