Vodacom and Rewards ****** Money from their own customers

Vodacom started billing me for a contract with Rewards which I never agreed to. Now my account is in arrears and none of the Vodacom staff are willing to help. I tried contacting the Rewards dept. and they don't answer their phones. I am tired of Vodacom and their terrible service. Now I just want to cancel my contracts and never deal with them ever again. Before they can cancel the Rewards "contract", they want me to pay the full account which is totally unfair as I will not get my money back from them. They are deceiving their own clients and this makes me wonder if Vodacom and Rewards are in cahoots with each other to ****** money from their own clients.