Avis ******* service and overcharging customers

I hired a car from Avis at OR Tambo on the 11th Nov 2019. I flew from Cape Town to Johannesburg for a meeting in Pretoria. Collected the car at 9am and returned at 1pm. When I collected the car, I showed the Avis Rep that there were scratches on the rear bumper (top near boot, clearly caused from suitcases). I had a small laptop bag and never used the boot, was told not to worry as the report had been entered. I was subsequently charged R2587 for a few hours rental on a Toyota Corolla. Avis are not interested in all the evidence provided, Standard Bank (credit card dispute dept) are equally useless and allowed my card to be debited despite evidence furnished proving that I did not damage the car. I will never use Avis again and warn others to stay away from Avis.