I purchased a return ticket to London online from Hull trains but two things went wrong. Firstly the train I'd booked was cancelled but fortunately there were other trains I could use instead and the delay overall was about 50 minutes. Secondly I discovered they hadn't sent me the return part of the ticket so I had to buy another at full price which cost almost as much as the original saver return. I am glad to say that Hull Trains responded to my problems and gave me a refund of the original saver return fare. Thank you very much. My advice is, check your tickets.