Up until now, there's been no resolution to the issue. They previously said something about international customers and that a result would come out in 1-2 days, but it's been half a month with no result.

Overcharging. It was supposed to be around 800 RMB but increased to over 1800 RMB. The young driver insurance turned out to be the main reason for overcharging. Honestly, it shouldn't cost that much. They charged an additional 260 AUD on top of the 800 RMB. The car rental manual provided by Zuzuche offered no effective solutions for compensation or prevention of such issues. I wanted a Mitsubishi car due to budget constraints and not wanting to spend too much on the rental, but Thrifty changed it to a Qashqai without notifying me, even though the car I wanted was clearly available in their inventory.

The pickup location is easy to find, and the car pickup went smoothly. The staff explained the important points.

The charged too much money from my card. According to their statement, it should be only additional 20 AUD for fuel (although tank was almost full), but they charged 40 AUD.

Thrifty should hold the deposit amount on our credit card and not directly charging to it because when they return back the amount which is in foreign currency, I lose $30 for the exchange rate.