Very unhappy about your treatment

On 5 March I rented a car from Budget Capetown. I visited Cape Town for Buisines purposes. I was given the key and told where I god fine the car. Yeserday I returned the vehicle in exactly the same condition as I received it. I was shown two small chips on the wheel hub and asked about it. I showed the lady that it was old marks. She asked me to write a statement which I did. On my arrival in Johannesburg I received a strong worded for email stating that I was responsible and had to cover the cost. This is utterly nonsense and unexceptable. I totally reject the claim. The treatment that I received made me feel like a ********. If I was at all responsible I would gladly except an pay for the damages but I'm not. It is not fair to expect me to pay for someone else's damages. Those damages could have been caused by your own people changing the wheels for all I know. Is this the way you do maintenance on your vehicles by accusing your customers an let them pay. I expect a apology. Give me prove that I was responsible. This is not how you treat your customers or is my maybe you don't need my business