Worse ever

I am very unhappy with the service from Telkom.I went to Signet in Lenasia South to confirm why my sim is not working the lady told me that my sim was damaged and I had to pay R99 which I never receive communication about this R99.The lady Lydia told me I was due for an upgrade and I view my statement last moth and saw a Device subscription Fee I called the call center and was told that its a once off and for October I wont be change for that.to my surprise I receive my statement for October and that device subscription appears again and was now told by the call center agent I will be paying the subscription until next year according to him my Upgrade was only due next year can someone please explain why and how as he cant see when I was due for an upgrade. This is now the worse network ever