Refusal to refund for airport transport money

I have a terrible experience with the rental car, a Hyundai I 10, issued to me on evening of Thursday 27th of August 2015. I drove the car to Salt River for meeting and back on Friday. I did not use the car on Saturday, I drove it in the evening to the airport. On my way back to the airport from Garden Court Hotel in Nelson Mandela Boulevard, about to on ramp N2 to the airport the car decided not to engage any gear. Got stucked , blocking for motorists way to onramp. A nurse who was driving behind me going to work got out of her car to check the problem but the car could not get into any gear. They push me to reverse it to get out of the way. It happen that the car behind her was the guy from the same complex. She asked them to help me take the car out of the way and call for help.The car was pushed to nearest bus stop. It was 19:00 and my flight was departing at 19:50. I decided to leave the car there locked, took the key and ask the guys who pushed the car to take me to the airport. <br> I hereby request a refund of my R350, 00 paid for transport with bank charges as I have to withdraw the money from the nearest ATM. Timothy promised that they will refund me now they decline to