Cancellation Saga & Agony

I have cancelled my contract with vodacom prior to my contract being carried over. I was told I will receive a reference number as a confirmation that I have cancelled the contract, however Vodacom its Cancellation and Accounts departments say that I have not cancelled my contract. I have received an invoice saying I owe them R 3117 because according to them I did not cancel my account and now they are telling me there is no record that shows that I have cancelled my account. My number is being suspended and as a result I have lost all communication with my all my contacts. My rights have been violated, and I will not pay that amount because I have been suspended from using this number ( ********** 053) for over 4 to 5 months now. I also asked the service agent to check if the number in question that was receiving airtime if the airtime was used, he argued that yes it was used, in the contrary my services have been suspended, so how on earth have I been using the airtime on a suspended service. Hello Peter, please help these big corporates are abusing us and ruining our credit records, thank you.