Vodacom takes its customers for granted

I called Vodacom cancellation department twice in December for a contract cancellation. Until today my contract has not been cancelled yet, I wrote down the names of the agents who "helped me". Vodacom is taking me for a ride, they are still deducting from my account I want my money back, as theres proof on their system that I did cancel my contract, I need my money back,this is the first step of filling a grievance as I I'm unable to contact anyone at Vodacom for complaints, I need a direct email to lodge a formal complain. I want my money back and I wouldn't advise anyone to use vodacom.