3) I'm on the My Booking page. When I click on Select Seats, nothing happens - what's going wrong?

TUI flights
Firstly, make sure that you've entered your email address in the lead customer email box at the top of the page. This is the address that we'll use to send confirmation of your selected seats, any extras you book and any special assistance you request.

It will also only show availability of the seat type you have chosen i.e. if you have purchased Select Your Seat, you won't be able to see Premium seats, Seats with Extra Legroom or Seats with Extra Space. If you would like a seat upgrade, you'll need to purchase it before going to the seat map.