I purchased collision damage protection from rentalcover.com many times for my rental cars, and thought it was a good and affordable option, until I really had to to use it. As they wrote in their website, I rejected the insurance offer from rental company, since I thought I had one with rentalcover.com. After I returned the car, the rental company sent me an email that they found a new damage which is a minor scratch on rim. I was not aware of it because I did not have any accident, or hit the car somewhere. Still, I thought that this insurance company would cover it, however they denied my claim because I claimed that I did not cause the damage :) So, I do not have any fault, I did not cause the damage, I purchased an insurance, but still I am the one who has to pay for the damage. I am frustrated by the rental company first, but rentalcover.com is also disappointing. I will never use this company anymore, because apparently they do not provide any service when you need it.