On collecting the car in Vancouver I was given the option of filling up the car myself or Hertz doing it when dropped it off at Calgary Airport and it does state fuel option on the paper work. I questioned the receptionist about my filling the tank on return and not being charged again. She said it was up to me how I wanted to deal with it and I would not be charged again if I returned the car with a full tank.
I did not sign anything, nor did I agree to any thing and was given the documents regarding the hire of the car. I filled the tank at Calgary airport and dropped the car off only to be told that I had agreed to allowing Hertz to fill the tank and that I would get no refund. The credit card receipt for another tank of fuel was in my hand before I got the cases out. Due to the check-in times I doubt that I would have got any satisfaction had I complained.
I find this to be a very sharp practice by Hertz and I will never, never hire another car from Hertz and I suggest any one intending to hire a car when on holiday use another company. If you have to use Hetz make sure you have all the t's crossed and the i's dotted and question every thing they offer you and have it down in writing.