Car hire accused of the dent i did not made, even today i never received a feedback

On 17 October 2017 my insurance has rented a group D car from Avis Centurion and they have provided me with Group E toyota quest - FM95SHGP. I have requested to be delivered to centurion car penal beaters then i was told to pay R1350.00 deposit. because i did not have cash or credit card, i told the lady that can i swipe debit card she said know only credit card or cash then i had to go to the bank to draw the money because i dont have credit card only debit card, when i return the car on 1 November 2017 she told me that my money had R200 **** I said to her that i don't think so because i am coming directly from the bank.

I asked the lady why that car because i am expecting Group D, she said there are no cars at avis. i had to contact their call center regarding the car and they told me that they branch will contact me the following day to arrange the relevant car and they have never do that until i return the car on 01 November 2017.

Then we went through the car with the lady doing inspection on the car and we saw lots of scratches on the car the we started to focus on checking scratches, we never go through the car to check the dents and she did not mentioned anything about checking dents we only focused on scratches.

When i return the car on 01 November 2017 i met with the same lady and other guy. The guy and the lady were inspecting the car then they told me there is adent on the car, the dent is equivalent to an Egg it is unnoticeable especially if you don't know how to check the dents on the cars then i refused because honestly i don't have any hand on the dent and is not my fault. And they are accusing me for that. The only thing that i know is 2 chips on the windscreen also not noticeable. The guy contacted me the following day telling me that the dent was not de all along and i have said to him what if the person who was working on the car has never noticed the dent just like i and the lady did not check the dents on the car, but he insisted that is me. Then the issue was taken to his manager Nicole and he said he will revert back to me and he never contacted me, every time i to call and do follow up, the last time when i speak to the guy he said is stil waiting for Nicole go ahead then i have asked to speak to Nicole and she said she hasaid instructed the guy on what to do but she will follow up on my case then she came back to me and said everything will be processed on Wednesday 8 November 2017. Today i have called them to follow up on the refund and i was told that my account is blocked then i asked what is the reason and none of them has contacted me then i have asked for the Manager Nicole and i was told that is on leave.

Peter please assist on this issue