Cancellation contract

I have been trying to cancel my contract,but vodam is making this impossible. I have called in October 2021 to cancel my contract in 24 November and Vodacom doesn't cancel it.i have queried this they said they will retrieve recordings ,but never came back to me.i am writing this email as a fourth attempt to cancel it.When u speak to their call centre ,somehow the call gets engaged,as if should the person cancel the contract in deed they will get reprimanded. I am sick of vodacom taking advantage of us.PLEASE CANCEL THIS CONTRACT 5th REQUEST.