Broken telephone communication

Good day Cell C, On the 09/09/2021 I received two data Sims serial numbers ***,I called the cancelation department they had phone issues I then emailed Nicoleen Pillay a cell C contactor who then advised that she has put in the cancelation request only to find out months later it has never been canceled I was charged for something that I did not use. Called cell c agent gave me a reference number *** which does not exist. Called again spoke to Wonga he logged a refund claim reference number *** he advised I will receive a call between 24-48 hours months later no one has called now it turns out that I have an outstanding balance. Called cell c yesterday they advised that current balance is R0.00 however today I received a sms I owe R704 when calling the agent advised that that sees the amount when asked if she can email me a statement or explain she said her system won't allow her. Here is the problem I'm having right now why wasn't this communicated? Why was my refund not processed? Why am I the one following up and having to explain the same stupid story over and over here is the thing if cell c employees can't communicate to each other that is honestly not my fault I have canceled the one data sim on the 9/9/2021 i shouldn't have been charged for it. I won't pay that outstanding amount because cell is delayed in resolving queries but quick to send outstanding amounts.. please teach your agents that giving the billing department number is not a crime gosh I cannot tolerate this broken telephone communication from cell c .

Can someone call me today please .