Telkom and it’s long cancellation procedure

I have been trying to cancel my contract with Telkom for the past year. I went to the store to have it cancelled but I was told I needed to call their customer service. Of which I did. They are so unprofessional and don’t want to hear you when you instruct them to cancel. Telling you that you must log the incident for cancellation online or on the app. I transferred the required amount but still no cancellation. Months later I still haven’t received anything from them confirming my cancellation. When you call their client service you hold for hours with no help. I’m truly dissatisfied with Telkom. Next thing they’ll be billing you. *Frustrated