Bad service

I bought a contract phone with cell c last year august, we agreed on the amount to deduct and on which date just like any other contract..but when i checked my statement i realise they taking more i called to enquire they said I subscribed on get more I asked when and how, asked them to send me a recording where i agreed they failed to provide, asked them to cancell they took me from pillar to post failing to cancell the subcription, eventually when I asked to speak to the team leader they did cancell i asked for a refund till to date they keep taking me from pillar to post still..I will never forget the bad service i got from Lindiwe Radebe and the ever so rude Paul who just failed to assist me.