This was the worst car rental experience. The car they gave me had a broken window. When I approached customer service, they said there were no other cars available unless I waited, so I had to take it. They said the return procedure was self-service and that all entry and exit records were logged. I returned the car early in the morning and handed the keys to the customer service; they didn't give me any receipt and just said it was fine. Because I had to catch a flight home, I left. Three days later, they claimed I hadn't refueled the car and wanted to charge me. I called customer service, saying I had taken a photo of the fuel gauge and had the fuel receipt. They said, 'Oh, then we won't charge you.' Two days later, they sent an email saying I had returned the car two days late! I called customer service again to argue, saying I took a flight home right after returning the car and had the ticket as proof. They also had records showing when I returned the car. How could they make such unreasonable claims? When I made the first call, they didn't mention the late return, just that the fuel wasn't full. Then they said, 'Did you know there are additional fees besides the rental fee?' I said no. After arguing, they reluctantly said they would refund the charges. This was the first time I encountered such 'groundless' charges! And it happened in 'the rule of law' society of America! This is why I'm giving a bad review for the first time.