cancel of contract

I have phone on the 1Dec'15, reference: Selina time at 15:20pm, to cancel my contract with Vodacom, guest what it was not done, please go listen to the recordings, and advice why is Vodacom staff not doing there work?? why should we phone to cancel our contract if you don't do it anyway. Once again it show that Vodacom does not put there client first, never again will I use Vodacom, please make sure you cancel my contract with immediate effect, and refund me what is needed. I phone ***, and still holding on for more than 30 minutes already, while im holding im busy typing this!! VERY VERY bad service received from Vodacom. I will share this with my friend and family!! thanks for nothing