Bad service / Refuse to pay my money back

For the last 5 x months Ive been struggling with Telkom mobile to refund me my money that they have been taken out my bank acc for a year, for a contract Ive never entered into. I've phoned the call centre numerous time, where consultants actually put the phone down in my ear, put me on hold for hours because my case is at the billing department and they cant help me and I cannot speak to anyone in that department. I have converse with numerous teamleaders in the call centre and they either cut the call , and Sizwe Dlamini actually advise me that he cannot assist me because even he cannot get feedback from the billing dept. I requested on several occasions for the ombudsman's contact details to further my case to and everyone is refusing to give me the details. All i want is my money, but it seems it's easy to ***** my money , than to return it. This is the worse company I have ever had to deal with.