For clarity they SHOULD make it the difference between full J and full Y, although I suspect they will not offer this. Under EU261 the official refund should be 75% of the ticket cost paid. As we were on reward tickets we didn't want to take this chance as the refund would be minimal so went for the overnight stop. EU261 compensation paid in cash at the ticket desk although they were quite insistent at first they would only give AB vouchers. A quick phone call to "someone" resulted in cash being agreed to.