The most terrible experience

The most terrible customer service I have ever received from Telkom. Firstly I called Telkom billings enquiring about my account because I want to cancel the contract I have with them. The guy in the call did not allow me the opportunity to express my views and queries I had on the conditions of my contract and said I can only cancel after paying the amount due to Telkom for the month of March, April and May. He kept on talking throughout the call and didn’t allow me the opportunity to speak. When I asked a question, he Further did not provide facts and only said that “that’s how things are, he’s been doing this for years”. The only concern I raised was why am I billed for the month of May because my account was suspended and I never utilised any data from Telkom. He transferred my call to the sales department after requesting a copy of my contract, I stayed waiting on the line for about 15 minutes with no one picking up the call at sales department. Why was I also not informed by Telkom that my contract was also expired yet they kept on providing their service?