Cell C I have run out of ways to describe my disbelief.

So 7 months later we at it again I see Cell C what a bunch of **** I swear. So last year 13 June 2018 I had to note a complaint on Hello Peter to get your attention and I then finally got my contract cancelled and my line converted to a pre- paid line this after my contract expired 2 years prior to me trying to cancel it completely. Today however I get a lovely sms message stating this is a 24 hour notice as i'm in arrears for the amount of R366.07 REALLY!! Cell C REALLY!!! goodness me. I then immediately proceed to calling the number that was given on the sms and I advise the agent that this can not be possible as i have been on pre paid for several months now and had there been a problem they should have advised me in at the time of converting my line as I was advised at the time that all had been sorted out and settled. The lady not very politely proceeds to then ask me "IF I have never heard of Cancellation fees before" I kid you not Cell C is now apparently charging me to cancel a contract that already expired 2 years prior to me finally moving to pre paid. I then I will be honest completely lost it with her and told her that I would like to speak to someone more senior like her team leader or supervisor and she again not very politely tells me that its not possible as I am stuck with her as she will sort this matter out and if i'm not willing to speak to her then to bad for me, I naturally proceed to put the phone down in her ear as I was literally shacking I was that angry with Cell C. people has constantly been telling me I need to port my number as Cell C is a waist of time and there ratings are down and strange but true I always seem to defend there service stating that apart from my issues I had trying to close my account i have never had network issues, well well Cell C let me be the first to tell you that you can now take your service and stick it where the sun don't shine as from tomorrow I will be porting my service to a different network even if this means being out of reach for several hours for my business as that now feels like a very very small price to pay for all the bull**** I have to take from your company regarding an account that is long gone, if you having financial difficulty maybe you should go see BOSSA God alone knows I'm sure even with all there ********** behavior they could have a better explanation as to why I am still being billed for a contract while on pre paid.