[pavorossi]

Hello and welcome to the forum Lisa. With out knowing which sort of train it was it's hard to say exactly why this happened, but I'm guessing it was a Transpennine Express service, probably using two units coupled together. First class is at one end of the 185s (which the main body of the Transpennine fleet is), with a vestibule area with a toilet between it and the driving cab. I reckon you'd have gone into this area, and then could get no further, because tere's no corridor connection between the two units. If you''d have gone the other way through first class you''d have got into standard class. Hope this answers you're question. Anyone else got any ideas to add?