Charging me for wrong package for 4 months

In February 2015 I signed up for the Telkom SmartHome Advanced package for R569 per month. Telkom took 4 months to install my LAN line and another 2 months to connect the ADSL. But they have been billing me for a different package and when they couldn't sort it out and I refused to pay, they disconnected my service. Now they expect me to pay for the reconnection and they STILL have not sorted out my account. I have spent hours on the phone with their consultants who keep passing me back and forth from one department to another. Not one of them (and I have spoken to at least 15 different people) have a clue how to sort this out. I won't pay for a package I didn't sign up for.