Immoral business transaction

This company has not responded to my plea of me paying twice for one car hire from 22 September to 6 October. I have been trying to get a response from them and their brokers CarJetHire. I made a booking at 7.30 am on 22 September, realized that the car was being delivered to OR TAMBO instead of King Shaka Airport Durban. I informed Green Motion in Johannesburg I would not be collecting a car at OR Tambo between 2 30pm and 5.30pm on numerous occasions on 22 September, yet they delivered a car and marked me as a no show. I also informed CarJetHire during that time frame. I then booked another car at 5.30 pm out of desperation gir King Shaka Airport Durban. I paid twice for one service rendered. I am still pleading for my money back. Green Motion in Johannesburg has done nothing to help me nor has CarJetHire. I am a pensioner who has been ****med by these two companies.