Vodacom being sneaky

I am very annoyed with Vodacom. My contract was due for upgrade in April/May this year. I called vodacom on the 02nd August 2022 to cancel this contract and was assisted by a consultant by the name of Babalo who further proceeded to give me a reference number for the cancellation: ref *** and he advised me that the cancellation would be processed.

Today, I get a phonecall from Vodacom offering me an upgrade and when I advised the consultant that I had requested a cancellation, she advised that my cancellation has not been recorded.

I WANT THIS CANCELLED!! I want to retain my number and cancel this contract. I dont want it!!!!! Do what you are supposed to do before I go to the ombudsman to report you for ********** business practise.