Do not ever use Avis rather take an uber

I am appalled by the experience received by me from Avis, I specifically asked the consultant at the King Shaka Airport regarding the washing of the vehicle when I return it and he advised that I do not need to take the car to the car wash, To my surprise there was a short of R563 from my deposit with a fee of R391 for Valet that I was advised not to worry about, Is that what you teach your consultants to lie to your customers so that there is additional financial gain to you, You do not treat your customers like this, I raised this on the survey and received no assistance, so you ***** with me and then do not attend to my concerns, How do I ever hire a vehicle with Avis ever again?