Unhappy

Good day Early this year I contacted cell c about my financial issue n they seemed to be understanding. On the 31 August I Paid 2500. They kept on saying they can't see the money reflecting and I kept on sending them proof of my payments. It saddens me that even after I had contacted them on the 18th September they have blocked my phone completely, I went to two stores (north gate and west gate to try and fix the issue but unfortunately no one could assist me...I called all cellc numbers requesting for help and they would always move me around to all the departments. My account is handed over to the debt review and in as much as I cannot use my phone I still have to lay the same amount I don't really understand why and if I am not mistaken I started of with 700and something and now it has increased to 823.99 no one really explained why it has increased n I most certainly do not get why I have to pay the full amount if I can not use my Sim card....when I lost my phone I has to pay 2900 access fee only to get a phone with 1 Sim and yet the one I bought had to put two Sim.. I generally do not understand why I'm I being treated so unfairly...I would appreciate the response