Impossible to cancel contract

My 24 month contract for a 15gig promo LTE Data bundle has come to an end at the end of March 2016.<br> I have read the Telkom terms and conditions on the cancellation and followed the procedure.<br> On the 7th of March I submitted my cancellation form. Only on the 18th of March did I receive an email with ref ***4 stating that they have received my request and that someone will contact me soon.<br> It has now been more than 2 weeks (5 April 2016) and no one has contacted me. I want this contract cancelled and will not pay for an extra month due to Telkom's incapability of cancelling the contract in time. I have taken out a new Telkom mobile contract 50gig LTEA and at the moment I have to pay for two contracts and I only want 1! Why is it so difficult to cancel a contract at then end of the 24month agreement???? I have done my part Telkom, please come to the party and do yours!