VODACOM CANCELLATIONS DEPARTMENT SLEEPING ON THE JOB

I have been with Vodacom for about 15 years, have always had good service, but now I am fed up with the incompetence of the Cancellations Department. I upgrade online and every time I do, it has been a smooth process. Not the last time. Firstly, in Dec 2020 I made the mistake of taking out a new contract instead of upgrading (because I am technically challenged especially with all the new fancy technology that changes at the speed of light). I informed Vodacom of the mistake, the courier company came to collect the entire package at the beginning of Jan 2021, BUT it has not been taken off my name and I am still being charged for a handset and number that I no longer have. I've called several times, I even went into a store, but was told that I have to phone. PHONE WHO????? When I do call and speak to their agents I am told the matter will be escalated, I will get a notification, then N-O-T-H-I-N-G!!!! I've sent emails to Customer Care ... really? They should be given a new title of "Customer Care Off-line Until Further Notice". I have demanded to speak to a Manager as well. Nothing! Vodacom should spend the money that they waste for Marketing on Training their people properly. If a Supervisor/Manager reads this, would you please get in contact with me via this platform. Let's see how long it takes, if at all ...