Prejudice towards customers of colour.

I am a very frequent renter with Thrifty, but always seem to encounter a problem when dealing with John from the Lanseria branch. On 31 March 2016, I collected a vehicle in the evening at the Lanseria branch and was assisted by an arrogant John. Upon my depature John took me to the vehicle and said that it was dark and he could not complete the vehicle inspection as it was dark. The following morning my girlfriend noticed a dent on the left side of the vehicle with visible signs that the car has been re-sprayed. With that much said, I assumed that the branch would've noticed such a dent and would have marked it down on their side. After I returned the vehicle, the amount of R3400.00 was taken from my account and I'm being placed under blame for damages that I did not inflict. So far nobody has been able to help me sort this out. No investigation has been done, because if that was done, I'm almost 400% certain that these damages I'm being falsley accused of inflicting. If you guys can show me legit damage check sheets from the last 10 rentals on this vehicle and the damages are not noted, then I will accept full responsibility. The claim number is: 28374 Also, please do something about John at Lanseria. He is giving your company a very bad name. And again, I'm sure I'm not the first person to complain.