Arrogant uneducated and just don't care

At first I was assisted with an upgrade from HQ. Then checking my bills I saw that the **** of a Get it service was never canceled as I instructed 2 days after I joined it about 2 years ago. But there is no record. Now I asked a few times to get that sorted and to cancel my upgrade, I was told it has been logged and collection of the handset will be done by them. After now that I have 10 Ref numbers regarding this cancellation I am told that because the handset is still with me and was used \IT IS NOT NEW ANYMORE"as the call agent told me now I have to pay out the full 2 year contract. As said already I have 10 Ref no regarding this. So I did the request early enough for cancellation and was according to them not done. I need this contract taken away as I am not to blame for the handset that is apparently not new due to my faults. So with that and all the upgrade costs added on my account still after cancellation witch wasn't done my contract I would've kept was completely wrong with data allocations and minutes. I will not pay this stuff as according to my records my 2year contract was ended and the new one didn't begin. But CELL C (USELESS) still issued it"