1. During my rental period, I experienced a flat tire in the middle of nowhere at 8:30 PM (still within business hours). I called the rental office, company headquarters, and other contact numbers, but none were reachable. I couldn't get any assistance from the rental company. Fortunately, the car manufacturer's roadside assistance service helped me out. Not being able to contact the rental company during business hours is extremely disappointing. 2. When I purchased additional insurance, the service representative miscalculated the amount I needed to pay. After I pointed it out, they pretended not to notice and simply corrected the amount for me to re-pay. 3. The deposit payment method is extremely strict, requiring a £1500 deposit but only accepting credit cards with chips. My credit card from home doesn't have a chip, so I had to purchase additional insurance to lower the deposit amount. Throughout this process, the rental company's staff were not friendly.