Unsatisfactory experience and bad service at Avis Car Rental.

I returned the car at Avis car rental at Rand Aiport in Germiston, where I was shown a small stone chip on the bonnet. I was made to acknowlege it, and this was followed by an invoice that they forwarded to me with an amount of R2700.00 to say I am liable for the damage. I explained to the Branch Manager and Customer Service that this was supposed to be treated as fair wear and tear as per the contract that I signed. I was not listernd to, hence am deeply purtubed by this, also given the fact that I previously received bad service from Avis at this branch. I am appealing to South Africans not to use Avis Car Rental to avoid being disappointed.