VODACOM DOESNT WANT TO CANCEL MY CONTRACT

My cellphone contract came to an end in July 2025, as per cancelation policy I called in the month of August where I was taken to voice prompts and had to select cancel contract, an sms was sent to sat it was being processed however the sms does not confirm cancelation and would receive communication in48hours. I did not receive anything and tried again in the month of Sept, same process until I called the direct number where I held 1hr 16min on a call that was never answered. I was called by a sales agent from vodacom and decided to use the opportunity and express my dissatisfaction but sadly he could not assist. I want my contract cancelled because it has come to an end why are they holding me hostage with my money.