Charged for cancellation of contract not received

Telkom Mobile has failed to reply to my query that has been logged from November 2015. They debited my account for a contract cancellation fee for a contract that was never received. in August 2015 I went to a Telkom Mobile store to get a data contract little did I know that this would turn into a nightmare. the agent who helped me at the store logged the contract and it was approved and told me he would contact me in 48hours he would contact me to fetch the device and simcard. through a series of 4 weeks I spent money, time and effort going back and forth to the store and never got the device, through this 4 weeks the agent at the store never once called me back and when I went into store while he was not there I was told he was on leave or his off days and no one else could help me???? Corporate's never stop working even when one employee is not at work this baffled me. after countless times of going back to the store I cancelled that contract and started a new one with another agent which was ready in less then 2days. now Telkom Mobile wants to charge me a cancellation fee for what they messed up and remained unreliable for. PLEASE PAY BACK MY MONEY!!!!! STAY AWAY FROM TELKOM