Vodacom sales services via the phone that are not presented correctly. They have failed to come back to me in 12 months after I expressed I want to cancel such service

Vodacom is deducting money for a service I never used and that got sold via the phone without telling me about terms and conditions. For 12 months (!!!) i am trying to cancel this service.

in short: 12 months, 3 service hotline conversations with 3 different reps, 5 email complaints/requests, 1 Vodacom shop visit (2 more phone calls to the service hotline) ,numerous promises that SOMEONE will contact me, reference numbers - the latest being 1- ********** ********** 1 - have resulted in NOTHING!! I am getting so angry.

A top up 5G got sold to me via the phone a year ago. The sales rep did NOT mention that an additional line has to be used. I was under the impression that the top up goes straight to me line (number). I have never used any data, no additional line (number) and simply want to give back what was sold to me under false promises. I am paying 200.-/month for a service that i have never used and want to be refunded with my money.

The promise that the recorded call a year ago will be found and heard has not been followed. I heard nothing to date.