ONCE AGAIN - PATHETIC SERVICE

On 11 October I tried to do a simswap on one of my phones and due to the utter imcompentence of the call centre agent involved the simswap was done on the incorrect number. When calling to inform them of their mistake I was told I could only call the following day to correct this problem. I had to puchase another simcard and when calling them the following day to correct his mess I informed them that, as it was due to sheer incompetence on their side I was not going to pay for either of these simswaps as the mess was theirs. I was assured that I would not be billed for either of them. True to form, when I received my bill this month I was billed for the one simswap....the one they had messed up. The phone in question is on my husband's name. He is suffering from an extremely debilitating dIsease and is unable to speak, as I informed the call centre agent. i also informed her that I was able to do the full required security check. I was then informed that they could not help me, I had to go to my nearest Cell C store...which is 150km away!!!!. When requesting to speak to a supervisor in this regard I was informed there was no-one available (really!!!!) and that one would call me back. Well, it is now 4 hrs after I called them, it is end of the business day, and SURPRISE!!! NO-ONE HAS CALLED BACK. To say that I am angry is putting it very mildly!!!!!