Avis car rental

Dissaponting service from Avis car rental,I used their car for a month I fetched from Potchstroom branch as veereinging branch did not have cars,so they refered me there and then and month later I returned the car in Veerening branch. Few days later,I receive a call that the tools are missing and two dents on the car. Firstly, why was that car not checked when i dropped the car and fetched it.I was told tools are placed under the seat.Maybe this is just my bad luck but someone is not doing their job I mean the are cameras to investigate. I did not get my 1500 deposit and now I am threatened to pay 2300 more otherwise legal action will follow.This is fine i will pay you guys but your service is disgusting and I will never ever use your service,very unprofessional.