Although Hull Trains offered the cheapest ticket open-ended day ticket to London from Grantham, I had no idea that I would have to leave London by 20.30 that evening. I looked up train times that morning (NB - on the Hull Trains website!!), there was no mention anywhere that the last Hull Trains train back would be at 20.30. It listed all the trains that would be leaving Kings Cross that night. Obviously the ticket only allows you to travel on Hull Trains. So I rock up at Kings Cross Station shortly after 21.00, only to be told that my last train had gone and I would have to buy a Virgin ticket at vast expense. To say that I was upset was an understatement. I was pregnant, emotional, alone and obviously had no choice but to cough up. Seriously unimpressed!!!! I will NEVER use Hull Trains again.