Is there a fee for changing the date/time of my tickets on Booking Portal? No - amendments are free however you can only make a maximum of 3 amendments. Related articles Can I change the date/time of my booking? What is Booking Portal and how do i access it? Can I change my visit time or date after my original visit time or date via Booking Portal? What if I'm running late for my time slot? I would like to cancel my booking.