Drove carefully and thoroughly considered the need to purchase full insurance. However, shortly after picking up the car on the first day, a pedestrian informed us that half of the license plate had fallen off. Upon inspection, we found the mounting hole was broken. Without a license plate, we could not continue driving and had to return to the hotel, cutting the day's trip short. On the second day, we went back to the rental office intending to switch to a different car but were told the damage to the plate might have been caused by us, so they refused to exchange the car or requested a 200-euro fee to our credit card for processing. After spending the entire morning resolving this, the one-and-a-half-day rental plan ended up lasting less than a day. Very frustrating.