****med by REWARDSCO with a ********** contract!!!

I was contacted on behalf of Mtn regarding an upgrade to my data contract. The lady insisted that I would save as I was paying R 121.93 for 2GB and she was "upgrading" my contract and I would only be paying R 89.00. I have just received my new bill and lo and behold I have been charged R 228.00. I have yet to receive a contract from these people and Mtn do not want to do anything as they need the contract and I can not give it to them!!!! Rewardsco's telephones remain busy and one cannot get through to them to lodge a complaint. This is really poor!! I will be making a case of ***** against them at the SAPS as they did not hold up their end of the contract.