Overcharged, need help/advice
Picked up a car on Oct 8th in Boston, dropped off car on Oct 9th at 3:15 in Boston Airport with tank on full. Have picture of the Odometer with date and time stamp on the 9th with tank of full. Stayed in Boston on the 9th and 10th, flew home on Oct 11th. Avis said I didn't return the car till Oct 13th so they are trying to overcharge me significantly.
Need some advice/help on the subject.