Peter Gerner, in the Copenhagen office, was incredibly helpful and patient with us during a travel debacle. My husband and I rented a car at Hertz Copenhagen for a month-long vacation in Scandinavia. In Sweden, we made the terrible mistake of filling the diesel tank with 1/2 tank of regular fuel. (NOTE TO TRAVELERS: The green fuel handle in Sweden is for REGULAR fuel. It looks just like the DEISEL handle in the US. The ONLY thing the rental insurance did NOT cover is wrong fuel type. Don't make the same mistake we did.) The car had to be towed and fixed. It was the high season so there were no more cars available. We took a bus from northern Sweden to Oslo, where a car had been reserved for us by Peter Gerner of Hertz Copenhagen. We were told in Oslo that we'd have to pay again for the car at last minute rates since Norway and Sweden were separate companies. Long story short, after our trip we worked with Peter Gerner in the Copenhagen office and Hertz customer service and reached a very satisfying settlement. Hertz Denmark and Hertz Norway worked together so that we would not have to pay twice for the rental cars. We only had to pay for the new fuel filter repair and tolls, and were refunded the additional thousands we had to pay for the second car in Norway. Thank you to Peter and to Hertz. I am a Hertz Gold Member and will continue to rent with Hertz. read more