Free upgrade to a standard flexi promotion” is available when at least one leg of a booking is upgraded to the Standard Flexi ticket type. This offer is available for bookings made until 31st January 2017, for travel between 1st March and 15th December 2017. The offer is subject to restricted space and availability. Excludes daytrip, foot passengers, vehicles designed for commercial use & bookings made at port. Phone bookings are subject to a £5 booking fee. The Standard Flexi leg is fully refundable and can be amended free of charge subject to any change in price between the original booking and that of the new booking. In the port on the day of travel, you may travel on any sailing within 4 hours of your booked sailing, subject to available space. P&O Ferries reserve the right to amend or withdraw all elements of the promotion without prior notice. Subject to Promotional Conditions and P&O Ferries' Terms of Business, both available online at poferries.com.