When picking up the car, it had two bars of fuel, and we returned it with the same amount. However, they still charged us for fuel. The staff acknowledged the mistake when we questioned it, but a month has passed and the refund has not been resolved. Additionally, we had already purchased super insurance at the time of booking and showed it to the staff when picking up the car. Yet, the receipt at return included insurance charges and related taxes. These additional fees amounted to two-thirds of the original rental cost. This is the first time we've encountered such an issue after many self-driving trips both domestic and abroad.