No Feedback on Contract Cancellation

I submitted documents to telkom and emailed [Email Removed] to cancel my 2 numbers which are outside the contract period with Telkom and convert them to pre-paid.<br> <br> To date I have received no feedback from them and the cancellation date is supposed to be 31 Jul 2015. I called the callcentre and the feedback that I received was that they cannot help me as I need to speak to the retensions department. But this department cannot be called, only emailed - and they dont answer any emails so what now?<br> <br> Seems like its setup to make it impossible to cancel your contract, especially I you assign a department that cannot be contacted and that does not contact you.