We filled up the gas tank near the airport before returning the car, but were still unfairly charged AUD 35.82 for refueling. This is very unreasonable, and we haven't received a response or refund after lodging a complaint. At pickup, they aggressively pushed insurance with no Chinese service available, making communication very difficult. We didn't get the car model we booked and were forced to take a larger car with an additional charge.