Making a change to your booking is quick, easy and can be done via your account page or by reaching out to our Booking Center. If the change in your booking calls for a reduction in the amount already paid, rentcars.com will refund the difference via PayPal. On the other hand, if the change calls for an increase in price, Rentcars.com will send you a link redirecting you to Paypal´s payments page where you will be able to pay for the difference.