- Go to TUI.co.uk
- Click "Bookings" then "My Bookings"
- Provide the surname of the lead passenger on your booking and the TUI e-ticket reference and your departure date.
- 3. The TUI reference is a 8-character numeric code shown in the flights section of your Heidi MyBooking account, and on your booking confirmation document.
- The lead passenger is the first person listed in your Heidi MyBooking account, and on your confirmation document.
- Then Scroll down to "Add Bags"
- If there is no option to add bags, you will need to call TUI +44 20 3451 2688