Vodacom ********ly deducting a contract service fee from my bank account to which there’s proof I did not agree to

I notified Vodacom that their external patterned Rewards company was dishonest with getting me signed up for a contract to which I did not agree to. Vodacom referred me to their partner Rewards company for further investigation. They investigated and I reported the results back to Vodacom. No feedback no answer no emails. I want my money back for the time they’ve been ********ly deducting from my account. All I get from Vodacom is I’m sorry calls and no action. It’s simple. Pay me back my money and remove my no from the contract. I’ve resorted to posting on this platform as no one ever can put the facts in writing from Vodacom side.