After waiting in line for more than an hour, I finally reached the counter. When I booked through the rental platform, I had already purchased full insurance. At the counter, I told the staff that I'd fully paid and bought full insurance. She asked me to sign on the iPad, where I noticed a lot of English terms and an amount listed. I reiterated that I had already paid in full and wondered why the amount was displayed. She assured me I wouldn't need to pay extra, it was just a signature. She didn't provide any contract or receipt, only a pick-up slip. After returning the car, I discovered $112.75 had been charged from my card. When I called to inquire, they said it was for additional insurance fees. I found this very confusing—I'd already purchased full insurance, why would I need duplicate coverage? Additionally, if there were extra charges, the staff should clearly inform customers about the amount and purpose. Such unclear charges feel like a deceptive act towards customers.