Network cancellation of contract went horribly wrong

I took out a cellular contract for a wifi router with Cell C Newtown Junction in November 2017. Their service was wonderful and efficient. Sadly for me, the area I live in (Jabulani in Soweto) has very poor network coverage, so I was never really able to use the device. I reported the issue, Cell C's technical investigated and they came back and told me it's network issue, and that by the end of the year (2017) there would have been additional infrastructure installed. So, while seeking assistance, I got put through to head office, to a lady I now cannot remember who struck a deal with me that I will not pay for the month of November while we wait and see if the network quality improves. Indeed this happened. In December, the device worked once when I was at another place, and not my actual residence. So I am certain that the issue was not the actual device. When I reported again that the device still was not working, I was told again to wait till the end of the year for additional infrastructure which I found rather pecu****, because we were already in the last few days of the year and the signal strength and quality had not improved. On January 10, I went back to Newtown Junction after I was told by a call center agent that I could have a network cancellation done, and I would not be held liable for anything-including a contract cancellation fee. The people at Newtown continued with their wonderful service, but they notified me that they have never done a network cancellation. That led me to being pushed from pillar to post by various call center agents, including the partners (or something of that sort) but eventually I was able to leave the device in store, with a promise that the cancellation would be taken care of. Two days later I was contacted by the center where devices are sent for repairs, to provide an SD number. Something happened, I'm not sure what, but it seems the center did not get the number. This led to me being debited on the 26th for a device that's not even in my possession any more. I have reversed the debit, and cancelled the debit order with my bank. I want nothing else from CELL C, but for that contract to be cancelled. I am tired of being sent from pillar to post, and I am frustrated at how inefficient people in the cell c umbrella seem to be. I really want nothing more than just a cancellation. I have been a cell c user for almost 5 years and this tops my list of horrible experiences with Cell C.

Here are the references I have: SD669053

From the center where devices are booked in: GPJOH223265

Cell C Call Center cancellations: ********** ********** 56