Vodacom are theives

I have a complaint and am very unhappy about the service i have received from the Vodacom cancellations help desk . I called in more than 2 months ago to cancel my contracts. I was given a ref number and advised that I should not be debited as they have changed the number to prepaid. I was then charged. I left the first month go through as I thought perhaps the advisor had given me wrong information. I decided to call anyway and was told that there was no record of my call or request to cancel. I gave them the ref number I received to be told that it doesn't exist. I advised the different consultant that I want my contracts cancelled and a refund to be given. I was promised a phone call back as I said I want the phone recording of the original call.I was told I can expect a call within 2 days.. but no call. I am sure the reference number and names I have received for my calls also don't exist. I want someone to call me on my landline,where I will record the call as it seems Vodacom like *****ing from their customers as they continue to ***** my money even though I have cancelled my contract and am not receiving anything for my money...I will not continue to call a cancellation help desk that give out ********** reference numbers and names for phone calls.