Contract ended - still getting charged for handset.

<p>About two months ago I phoned Cell C to end my contract as it was out of contract by then. I used to pay R1900. I was told by the sales consultant over the phone that I can continue the current contract on a month to month basis on my old handset and that they would stop charging me for the handset and only continue to bill me about R550 a month for 200 min and 3 gig data. (Contract ended march 2017) At the end of Alril and May I still paid R1900. Now I see that the amount due for this month is again over R1900. How can you persistently charge me this amount as i am already out of contract and made an arrangement with your consultants for the new "contract". Please attend to this matter ASAP as I will not hesitate to take this further.</p> <p> </p>