Bad experience with Absa car insurance

Today I hit a pothole and my car started leaking oil. I called Absa since I am insured with them under RSI. They towed my car and organized a courtesy car. I was adamant that I needed the car today and was told that I could go to Avis in Sunninghill to get it even though I requested that it be dropped off. When I arrived there I was told that I have to collect at Lanseria not Sunninghill and it has to be at 8pm. I waited till 8 and made my way to Lanseria. When I got there I was told that the car is marked for release for the following day at 8pm and not today. As a person who doesn't reside in Gauteng, me traveling back and forth has already wasted so much of my time and money. If it wasn't for the very helpful people at Avis Lanseria, I would have had to spend the night in Johannesburg and wait till tomorrow to get a car. The horrible service and inconvenience that I have suffered is beyond appalling. There was no regard for me as a customer at all. Very disappointing.