Poor service from europcar hire

I am supposed to be a holder of a privilege card which allows me a free car hire after a certain amount of use. I have now hired a car for two fairly lengthy periods and no record is taken towards a complimentary hire and that is despite regular discussion of the problem at their hire desks. Discussion with 5 different members of staff achieved nothing and surprise surprise when I had the cheek to complain about having to explain my problem to 5 different people I was cut off. I also had a very minor dent in a door caused by wind blowing the door open it cost me slightly less than R6000 to repair when a little bit of careful use of a rubber hammer would have resolved the problem. I suppose EUROPCAR [hired via DISCOVERY ] are off the list of companies to rent from. Beware all.