Horrible customer service

I think Avis is the worst business ever, on the 17 dec 2022 my insurance rented a car for me from Avis after an accident, on the day I was promised the car I waited for hours until I called Avis to find out where the car is, only to be told they have no cars available, I must go to another branch which 70Kms away mind you I had the accident in the middle of nowhere and no means to get to the said branch, had to fight just to have Avis eventually deliver the car. I have now returned the car about a week ago,it was inspected on site and was said to be in good condition, Avis has now deducted R2k from account no invoice, and I still have not received my deposit, I don’t know what kind of ****a shop Avis is running