Billed for a an extra day i did not have the car

I got a car from Avis after my accident as a courtesy car, firstly, I was not happy with the car when i got it and i requested an exchange to another car because it was not cleaned properly which i unfortunately did not get. I ended up driving this car for the stipulated period even though i was unhappy with the car i got. The day i had to return the car i was getting endless calls from Avis to remind me to return the car before 2pm which i did because i knew the implications of returning a car late. This car was returned during my lunch time (12:30-13:15). i had paid in a deposit of R1200 to get the car and when i got my refund it was R981. I called customer care to ask for a reason why, and they told me i returned the car at 17:00 which is not true. I have complained between customer care and the Bloemfontein branch with absolutely no success. I received the worst service anyone could ever ask for and yet I paid again for hours i did not have the car and have now spent a lot of airtime trying to resolve this with no luck at all. <br> <br> This experience just taught me that Avis does not really care about individual customers and I have no desire to hire a car with them in the future