Cancellation of contract

Last week (23/04/2019) I called to cancel my contract as I wanted to move to prepaid, was advised if I wanted immediate cancellation I had to pay the amount due - which I did. After numerous calls back to the cancellations department and 2 days later , I was told my escalation was being processed and someone would call me. To date and after 3 attempts of holding on waiting to be transferred for more than 5min I've completely lost my patience as clearly there is no interest in attending to my query. this service is pathetic as no one has any answers and empty promises are made! clearly just moving to prepaid with the same network provider is also an issue! Can someone please just attend to my query! PS! whilst typing this with one hand I've been waiting to speak to someone in cancellations! Thanks for nothing Cell C!