Is there a maximum number of times I can amend the date/time of my tickets on Booking Portal? You can amend your tickets up to 3 times on Booking Portal. Related articles What is the Account Holder Portal? How soon before my visit can I amend my time or date of entry on Booking Portal? Can I amend my tickets to an earlier time or date on Booking Portal? Can I book my disabled tickets online? How do I contact you with a guest enquiry?