When picking up the car, the store staff kept adding various extra charges (mostly insurance). After I told her I didn't need them, she would remove the cheapest one, and this process repeated several times, wasting a lot of time. Eventually, she insisted I keep a third-party liability insurance, claiming it was necessary as it was not included in the original rental contract. Additionally, there was a small incident when picking up the car. One staff member told me I could choose between two cars, and I picked a newer-looking red one. At the exit, another staff member said the red car was already reserved and asked me to switch to the other car. While transferring my luggage, I forgot my backpack in the red car, which had my wallet (various credit cards), laptop, and other items. I drove to my friend's place over 60 kilometers away from the airport. It wasn't until after dinner (around 10 PM) that I realized my backpack was missing. Unable to reach anyone by phone, I had to drive back to the airport. Fortunately, the duty manager had kept my backpack and checked its contents. Despite driving over 100 kilometers round trip and returning to my hotel late at night, I was relieved to recover my backpack.