Be careful if your teenage children travel alone with trainline. My daughter and her boyfriend bought an open return from Darlington to York to attend a York university open day. Both paid £12.60 with student cards. On the way back they got on a train from York to Darlington as their ticket was an open day return. There was no room and they had to sit on the floor. Then 10 minutes from Darlington an aggressive Man checking tickets examined their return tickets and they were told that as the train did not go through Northallerton they must pay a further £30 each. The man refused to recognise their student cards and bullied them into making the extra payments. Being fairly naïve my daughter and her boyfriend paid the bully an extra £30 each. Trainline later said they should have examined the fine terms and conditions of their original ticket. They refused to comment on the Bullying ticket inspector and refused to comment why he ignored their student railcards. No wonder people complain in their droves about this dirty late inconsiderate rude rail service we have in this country.