I reviewed the car rental notice several times, which required us to return the car with a full tank to avoid unnecessary charges. However, when the rental company authorized a pre-authorization, they charged an upfront fuel fee. Regardless of whether you return the car with a full tank or not, they will levy the prepaid fuel charge. Now, I am asking Zuzuche (the rental platform) for this money back, but they have been delaying for a month without any response. Can't Zuzuche refund me first? If the rental company doesn't refund me, will Zuzuche also not refund me?