BAD BAD BAD BAD BAD FEEDBACK, BAD SERVICE, BAD MANAGEMENT

August 2016, i Prematurely cancelled two contract lines, meaning I prematurely paid up my contract lines, however Vodacom has been billing me from August till this day, which don't make sense, after 5 or more logged dispute, still no answer. The matter is still unresolved, I apparently owe them for prematurely paying of my contracts, I asked for a refund, no answer. But they got a nerve to say I owe them, what a BAAAAAAAAD service provider. I then decided to close off my current lines as well this Feb, prematurely paying them off due to bad service, I am stilled billed and I owe them. My dispute are just closed with no Solutions, How do you operate????AND i have to pay???? How do you pay for contracts closed, make me understand?