Vodacom refusing to cancel contract despite multiple requests

I took a Vodacom cellphone contract which was due to end in December. On the first of December I called to cancel the contract as required(they said I must called 30 days before when it’s time to cancel). Since then I have called more than 8 times and every single time there’s different excuses as to why the contract cannot be cancelled. Instead of processing the cancellation, Vodacom keeps delaying and shifting the goalposts .

This is extremely frustrating and time consuming. I comp**** with the notice period and followed the process yet Vodacom is still refusing to cancel the contract. This feels like deliberate stalling to continue billing me unfairly. Very disappointing service and lack of accountability.