Worst service provider in the country

My drama with Telkom is never ending. App**** for relocation of services in April and filled in a cancellation of services form at a store on 9 April. It took Telkom about 3 months to instal fibre at my home, all the while still charging me for services at my old address. At one stage I called Telkom and was told to reverse charges, which I did, and I was then charged a penalty. When I enquired again I was told that a recon would be done when new services started. Then when I finally got new services in June, they started charging me, and have continued to charge me for my old line! I have phoned the accounts' department so many times to resolve this until eventually I was handed over to the line manager David Stellenberg who said he had escalated it and it would be resolved. Still no luck. I call again and he tells me Nicolene Shaw from credit management would SMS me that same day to tell me how much my account would be credited by, and if I didn't hear from her I should call him back. That was Monday. I called him today to be told he was busy on a call and leave my number to get right back to me. Guess what? No luck. So now I am sitting on the phone with Telkom accounts' department, on hold for David Stellenberg for 20 minutes. Just so unacceptable. Guess next step is legal action.