Paid for a service Telkom was never able to deliver but accept the monthly payments without hesitation. Poor service and communication

Five year ago we purchased a new house and subscribed for a 40mb Telkom ADSL line. After approximately 4 years use and numerous reliability issues along the way, we experience yet another fault. When the technician arrived, he checked and found a fault with the line to our residence. He also informed us that we are not in range to enable us to have a 40mb line in the area we live in and that we have paid for more than 4 years for a service which Telkom was/ is never able to deliver. Calls and e-mails remains unanswered up to today and nobody at Telkom seems to be interested in dealing with this issue. I have been overcharged and not a word said, but gladly accepted my monthly payments without interruption. Over the past three months, since the installation of fiber in our area, se connectivity to the Telkom system went from bad to worse. Interruptions are more frequent. This was reported and yet again, no progress made. Telkom is bluntly refusing to talk to my wife when I am not available because the account is in my name. Can you believe it??? Due to the lockdown, I was "forced" to continue with Telkom due to the requirement for online schooling, etc. Almost 5 years, I tried cancelling my account. I have been paying my account on Easypay for at least 4 years now without issues. All of a sudden, the last two months of payments were not received..... Contacted Easypay which provided proof that the payments were hondered. Telkom still denies that the payments were received. The service call center is not very helpful. I have requested the representative to inform her supervisor/ manager to return a call, but I am still waiting. No call received up to now. Five years worth of installments for a premium package paid for but not delivered. What happened(-s) to my payments?? Lost??? Then in arrears??? Tried to cancel the service online. Again, no response what to ever. I settlement bill not received. How long does it take to finalize an account?? It took minutes to subscribe/ open the account and months to close. Very good business practice...... maybe not!!