Traumatic experience from Hertz

I am still traumatized over the service I received from this company. I booked a car online and paid the amount quoted and everything was fine. I landed in East London at 17:50 and went to collect the car, upon arriving the consultant took my details, ID and credit card and then told me they can't give me the car as my credit score is low. They told me I have to pay at least R12000 if I want the car, after all I was the first time customer with them and they are not sure if I will do ******* activities with the car. Many people rented cars from them and ended up doing ******* activities, for Heaven's sake I was with a 7 weeks old baby but this company refused giving me the car I had already paid for and I was left stranded at the Airport. 8pm I was still there, till some police officer helped and found me a nearest guest house, even the boss refused to release the car. Seeing my baby cry that way and left in the dark by the staff killed something in me. What has this world come to? Had to change my flight details and go back the following morning as I couldn't continue with my journey. I would be lying if I said I wish them success but God will judge them for what they did, I wasn't buying from them after all I had paid upfront. Will never understand their processes.