CELL C DEBITING ACCOUNT FOR A CONTRACT THAT I DO NOT HAVE!!!!!

I have been fighting this battle with cell c since November 2021. I took out a contract with cell c on 10 November 2021. I requested for my prepaid number to be ported to a contract number. The lady told me that it could be done. I further asked the lady if I will be able to use the sim card in my cellphone without any issues? and she told me yes I can use the new sim card as normal on my cellphone without having to use the router. I was happy that I was able to do this because the main purpose of getting this contract was to be able to convert my prepaid to contract and use this data package on my cellphone. I verified this numerous times during the call and each time she reassured me that it was and is possible. The pocket router and sim card was delivered to me on 12 November 2021. I opened the package and proceeded to get things started as I wanted to be able to use the sim card on my phone as soon as I could. I knew it would take at least 24 Hrs to activate so I waited till the next day and still no joy. I wasnt having any luck with getting things started so I decided to call Cell C customer services to help me with the activation. When I spoke to the consultant they told me it was not possible to use the new sim card on my cellphone because it is a data contract only. At this point I was livid because that is not what I was told. I had checked this repeatedly when taking out the contract and the lady kept telling me it was possible to use on my cellphone. I then decided to cancel the contract immediately. I was still within the stipulated cancellation period. Cell c arranged for Ram couriers to collect the device. Ram couriers arrived 20 November (Waybill number for collection RW***1). I was told that I would not be billed because the device was returned within its time period. I thought that this was put to an end but NO its been an ongoing nightmare!!!!!!! I have been billed December, January and February for a device that I do not have. Furthermore they are billing me a cancellation fee, which I am not liable to pay because the fault is on Cell c's representatives poor communication and lack of training. I have been reversing their debits on my account because Cellc is taking money out my account even after cancelling .I have called Cell c numerous times most recent 02/03/2022 with case number ***,to put an end to this and each time the consultants tell me that they have escalated my query and someone will call me within 24 to 48 hrs but no one ever does. They then send an email saying my query was resolved!!!!!!! HOW?????? when no one has contacted me. They have now handed my account to VVM a collections agency because I have not paid the outstanding amounts. This is absolutely disgusting. I need this to be put to an end immediately. I am tired of calling the Cell C call centre and to be given empty promises. I need someone in management to resolve this once and for all!!!!