Vodacom ignore cancellation requests

Requested Vodacom to cancel 4 numbers from my account in March 2020 and they still have not done it - STILL continue to charge me for the lines till now! I phoned the call center but they always cut me off or system issues on their side. In addition asked for change of ownership on Fibre broadband line Sept 2019 and they still charge me for it. They purposefully make it impossible to cancel numbers/contracts. They have still not cancelled my numbers after raising the issue on Hellopeter a few weeks ago !