Telkom Mobile trap: unable to cancel service

Appalling treatment from Telkom Mobile. I have been trying to cancel a service for a few weeks now. Still no success. Took these steps: 1. Tried to phone the call centre several times. No response. 2. Eventually got through and was told to complete a form. 3. Filled in the form. Could not get the email box to accept my email. 4. Got hold of call centre. Was told that the email box has been deactivated and I must now cancel online (the form-based cancellation has been discontinued). 5. Created a profile and tried to cancel online but could not, after 20 minutes, find a cancellation function. Resorted to requesting a service call. 6. No service call received. Logged in again and tried to find cancellation function. No sign of it. I have not wasted more than an hour of my time and still have not been able to cancel.