Unable to cancel, lies

In what world can one not speak to someone about cancelling a service? Sent cancellation papers 22 March and despite several phone calls to the call centres, no one canhelp me. Everyone promises the same - someone will phone me back. Denzel specifically promised a call back witin 4 hours. It has now been 48 hours and counting. I am emigrating and have allowed 6 weeks for the cancellation, but that is running out fast without any clarity. This company does not deserve the right to exist. I would urge anyone thinking of taking contracts out with Telkom to think twice. There are other options these days.