There were many people, waited in line for 1.5 hours to get processed

I encountered an unethical staff member at Avis who seemed to be a manager—an outright scammer. Here's the story for everyone to understand. Avis requires the tank to be full when returning the car, but due to heavy traffic, a 40-minute drive took two hours. Worried about the time, I decided to refuel near the return location. To my surprise, there was no gas station nearby (which is unreasonable because if you refuel far from the return spot, the tank will not be full by the time you get there). For everyone's information, the return location has a gas station, but the price is $10 per gallon instead of the normal $3 per gallon. So, we were fined $61. Isn't this a deliberate rip-off? That's not all, though. The worst part is yet to come. We tried explaining to the staff to avoid the extra charge, but if it didn’t work, we were ready to pay. The staff introduced us to an American man who seemed to be a manager to resolve the issue. However, this 'scammer' pretended to help us. He printed a receipt, intentionally showing a charge of 61 and then a -61, making us think the fee was waived. He also added a charge of 17, supposedly for the regular gas price. We trusted him without thoroughly checking the contract filled with English and technical terms, and thanked him repeatedly. Later, I found out I was charged on my credit card. Upon inspecting the receipt, it all became clear (I kept the receipt just in case). The $61 was not a big deal; we were ready to pay but just tried our luck. Who knew people in the U.S. could be so unethical? Even when we picked up the car, the front desk staff was unfriendly. Maybe it was due to the cheaper rental rates for Chinese customers through Zuzuche? On a positive note, the customer service at Zuzuche was excellent.

Received a 100 yuan fee after returning

They explained the car model I booked clearly, so it was acceptable.

I have been charged 435 US dollars outside of my already paid amount for this reservation. 174 were cut as security and 239 have been cut after we dropped it off. This is highly unprofessional and has not even been authorized. ALSO NO RECEIPT OF THESE DEDUCTIONS HAS BEEN RECEIVED. Please have this reversed.