Feel conned by Avis whose counter staff couldn't bringcar to me and took advantage of tiredness to u

A few days after returning home we get an invoice from Avis for charges in excess of voucher value. The various charges have no 'key' to explain what they are - VRF charges, CFC charges, TOF charges, Combination of charges - and also include PAI (presumably personal accident insurance) and roadside assistance plus that were offered at the desk and declined. The car was collected from a large car depot late at night and once I had signed the forms I was told the row/space number for the car and we had to trudge our cases across this depot to find the car. Due to lack of lighting it was impossible to inspect the car which, upon closer inspection the next day had many marks on the bodywork. I would not hire from Avis again!