Sorry about your experience.. next time.. It may help if you make sure the
damage is noted on the agreement when you leave the place...
and take pictures if you see any damage. This will help you if you need to
file a claim with your credit card.
Sometimes credit cards will refuse to cover SUVs, pickup trucks and moving vans.
But I agree, some rental locations are very bad about this. Sometimes it feels
this is the only way they make profit