<prompt> Human: We recently went on vacation and rented a car with a large, global rental company. Our flight back was very early, which means we would be returning the car while the office was closed. The rental clerk told us that we can return the car their lot, put the parking lot ticket that you get upon entering the lot on the dashboard, and simply lock the keys in the trunk. We did just that, and now found out they charged us for an extra 17!! Days. Which comes to over 1000. When I called they claimed they never told is to lock the keys in the car, and that it took them 17 days to find the car in their own lot. Oh, and they also charged us for having to break into the car. The real problem is that I am afraid to dispute this charge with my CC. They are a very large company, and I am afraid they will charge again and send our bill to collections, which will destroy my credit. Is there anything I can do about this situation?  <response>: You should call the company and ask nicely about this - do you remember who told you to lock it in the trunk? Either you misheard, or they pulled a mean joke on you. The way to return a car is to put the keys in a lock box by the door of the rental office, NOT lock it in the car! 