Unfair and wrong charge put on me

Poor service I have rented the car the second time. The first service was brilliant. But the second service was so bad. 4 days off rental ended in Cape Town International airport. The return service fleet went around with to check if the car is filled up and quick around if any dent, cracks, dings or anything similar, nothing was noticed. Two weeks later I got a call from Woodford Car Rental that i am liable of windshield cracks and chips. I am concern about the time it has taken to report any damage put in my name. I am so disappointed and have remove all the trust and consideration i had with this rental company. They are not what i expected to be. We just need to be careful