Yes, if you want to extend your reservation, there are multiple ways to do so:
If you haven't paid for the booking: ask the owner / provider to modify the booking dates for you. Or cancel the existing booking and place a new one.you can do it from the bookings page in your accounts. The price for the additional day(s) will be the ‘extra days’ rate. As always, the owner must accept the extension first.
If the booking period is already running: Go to the detail page of the current booking (go to your bookings page and click on the 'extend' button which you'll see there. The price for the additional day(s) will be the ‘extra days’ rate. As always, the owner must accept the extension first.
PLEASE NOTE: If the extension is not accepted by the owner, you should return the equipment on the originally agreed date.