The total amount due must be paid at the counter when the vehicle is picked up. In case of early returns, the contract will be revised and adjusted. Any refunds will only be issued after recalculating charges based on actual usage. Please note that the daily rate may change as a result of the actual number of days used. In the event you would like to keep the car longer than originally planed, you will need to contact the rental car company directly to request an extention, or just return your current rental vehicle and start a new rental with a new reservation.