Telkom claims that I have cancelled the contract

Telkom claims that I have cancelled the contract over the phone and which is something I didn't do. I have phoned them many times and they kept on debiting my account. I am sick and tired of their service and their empty promises and them robbing people their money. Telkom YOU MUST STOP TAKING DOGGY MONEY FROM MY ACCOUNT. IF YOUR BUSINESS IS STRUGGLING, DON'T ROB PEOPLE MONEY. I NEED MY R1050.00 BACK IN MY ACCOUNT TODAY. I AM TIRED OF YOUR SERVICES!!!!