I am not sure if this is allowed on this site or not, but here goes.
We have been charged $500 for alleged damage to a rental vehicle. We most definitely did not damage it in any way.
I do feel people should be warned to be careful using rental cars.
We rented a vehicle in Wellington used it for one day, looked after it carefully and left it at the airport. We had to pay a fee to be able to leave it there. Nobody was there to receive it from us, we left it in good faith - big mistake. They phoned us 3 days later to tell us about the "damage". We denied it, but our creditcard was charged in any case. Beware of Bargain Rentals/ Hire-ace in Wellington!
I would advice to always check any vehicle carefully for damage before you take possesion and only drop it off where they can provide someone who can sign it off again as not damaged.
It is a pitty that some crooks influence the whole industry. It is better(cheaper) to be very careful.