I bought 5 adults passes one free child pass but would not let me proceed with 3 year old pass as you have to enter the date of birth - it comes up with an error message saying child passes are only available to those 4-11 on the date that the pass starts so I had to remove the 3 year old pass to let me proceed to buy the other 5 - this is very frustrating - we will need to make reservations on some trains that are long/overnight journeys and cant for the 3 year old. Customer Services have not replied even though I marked it urgent as we plan to travel before the end of June