Repeat user who will NEVER return!!!

I made an online booking on the 8th November, ***, for a pick-up on the 14th November and cancelled the booking on-line on the 12th November and checked to confirm that the booking was cancelled on-line. I also called the Sandton Branch to confirm the cancellation. I was then billed on the 12th November 2024 for the full amount of the car hire, and called to inform them on the 13th November that it had been cancelled. I was told that they would look into it and get back to me, but that the refund normally took 5-7 working days. This refund is still outstanding to date and totals an amount of over R13000.00 I would honestly appreciate SOMETHING being done by management of Woodfords Car Hire to rectify this problem URGENTLY!!!