I have booked Ryanair one way air tickets for my parents from Malpensa (Italy) to Stansted (UK). When they walked to the check-in counter the ground staff asked to show a bar code on the ticket, but unfortunately we didn't get any bar code on the online ticket. Then they wanted my parents to purchase a new ticket; finally they informed my parents that your time is out so you better find another flight. Once my parents called me I was shocked. Please let me know what is this bar code?
Now they have to wait another 12 hours at the airport for the next flight and their is no one advising them how to change their ticket for their next flight. All the officers want them to buy a new ticket and they ask my parents to inquire about the previous tickets online.
Now they got stuck at Malpensa airport. Can anyone advice me how to change their previous ticket to travel on the next flight?