No Feedback or Refund!!!!!Pathetic!!!!!!!!

I had a rental car at centurion avis car rental and paid a deposit of R1350,00 after the staff member insisted that I pay it cash not swipe they then gave me a form to write my banking details in in order to get back my refundable deposit....I took the car back on the 6th October and was told that the money would reflect in my account within 3-5 working days.....On the 26th of October I had to call them to follow up and they had no answers and just said the paper got lost.....I then went to them personally and gave them my details again and the lady in charge assured me that I would get a call from her at 2pm that day with an answer as to what happened............nothing happened and from that on the 29th I got an sms to phone Francois at the head office to give him my banking details AGAIN!!!!and since then I have phoned his landline that was provided on the sms 4 times a day without an answer........this is 4 days and 12 calls without answer later I would never ever recommend avis to any friend or any person whatsoever PATHETIC SERVICE