Unauthorised debit order not refunded

2 months ago an unauthorised debit order of about R1800 went off from car track. When I called to ask I was told it was a 12 month advance payment (which I had never authorized). I cancel my subscription and ask for a refund. I've made about 7 calls to the call center requesting a refund but to this day nothing has been done about it. I am always told they are working on it. This is very infuriating as I am always being sent from one person to another with each call that I make. Nobody there seems to care. The call center staff is always extremely rude too. I JUST WANT MY MONEY BACK