Overall the whole process was smooth and efficient. One thing you have to work out is the petrol situation. I understand your position in that people were returning cars nearly on empty and then removing their credit card details on file with you meaning Allied had to pick up the cost of refilling the car. That being said there must be a better alternative. each time I picked the card up the very first thing I had to do was get to the nearest petrol station asap. The likes of Hertz or Avis must handle it more efficiently and if you can match their procedures it would be significantly better