RMCS did not want to cancel my airtime contract

I called Vodacom to find out why cant i Export my number to Telkom, they inform me that i have a contract with RMCS which i never agreed on or even signed up. got hold of these people and told me they will contact me withing 24hrs, no word from them..

i want them to explain to me how they subscribed me into this contract and i will forward this to the obundsmand office find out how can i sue for damages they caused

Thank you