They immediately tried to sell me upgrades, from vehicle models to toll fees; it made me very confused after a while. I booked a mid-size SUV, but she said I definitely needed a full-size one for convenience, etc. When I insisted on no upgrades, she stopped offering upgrades but did not revert to my original booking. I ended up paying over 500 extra dollars to upgrade to a 'standard-size SUV,' but these cars are almost the same size. It’s hard to distinguish which ones are 'mid-size' and which are 'standard.' I ended up paying almost double the original price (which was over 700 USD). Since I had printed my reservation, I noticed at pickup that the price I booked was not listed, just a rough estimation in RMB. I assumed the amount shown was the total I needed to pay. I repeatedly asked if I had already paid, and they told me they were not aware of my previous payments but that payment was necessary at pickup. They said I had only paid for the car itself, without any extras. It was only when I checked my bank account after picking up the car that I realized I had been charged extra. Looking back at the receipt, the model was marked as an 'upgrade.' I feel strongly deceived!