very rude staff and felt ripped off

When i arrived to pick up the car I was surprised to learn that I had to pay for the cost of the fuel, i did not realise this to be the case. I would have accepted this but I was asked to pay 160 euros for a tank of fuel for this type of car. This is approx 100 euros too expensive and the rest was explained as 'other' fees... I was not willing to pay this much and so I was forced to accept a much smaller car but still forced to pay 110 euros for a tank of fuel which is a total rip off. I therefore had to take a much smaller car than I was expecting, had to squeeze my family and luggage in and pay 110 euros for this privilege. The staff member as extremely rude, unhelpful, unwilling to se any other point of view and plainly didn't care. It got our holiday off to a very poor start.