Trip from Milan, Italy to Interlaken and Lucerne in Switzerland, then Dijon and Paris in France

I booked a microcar through QEEQ at the Hertz location in Milan's central train station. However, I couldn't find the location based on the given address and had to wander around a lot before eventually locating it on a side street near the station. Since there were few people, the paperwork was processed fairly quickly. As I planned to return the car in France, the staff offered me a free upgrade to an SUV that had been driven from France. However, the final charge increased from the originally booked price of 680 euros to 850 euros at checkout. Due to urgent matters, I had no choice but to accept the higher cost.