Vodacom - No customer service at all - *********** customers

My contract was up on 22 Nov. I called in June to cancel or change number to pre-paid and they said I should call on 1 Oct. I called 1 Oct and was told my last bill will be end Nov. I called again early Dec to confirm as it showed on my bill that I am still being charged and I was told that it was cancelled and a credit is being requested. I called again on the 7th Dec only to be told I cancelled in Dec and had to pay for Dec and then got the phone put down on me. I drove to Vodaworld only to be told that they could not help me but they would log a call and I was given a reference number. They also put in a request to the recording. 9th Dec. Call closed. No resolution. I called on the 10th. Lady could not help me. Supervisor will call and nothing has happened. Please note that I place my final cancellation on 1 Oct. Also confirmed by your call center agent that it was received and he has requested a credit for Dec. Please provide me with the recording from Oct and Nov and Dec. Or must I get my legal guys to request this. Now I find out that this was cancelled only on the day I drove to Vodaworld – using this ref number from the day I drove to vodaworld to get this sorted. This is totally ********* and a *******.