Absolutely awful experience using Trainline. Had a train booked from Doncaster to London and woke up to an email stating the train was cancelled and I could either a) use my ticket on another Grand Central service that day or b) request a refund. As there were no other Grand Central services that day I decided to request a refund and book a ticket for the Northern service as I needed to be back home that day. This was a few weeks ago and Trainline are still refusing to refund that ticket despite the email saying I could get a refund. Their reasoning is that I still traveled even though that was with a second ticket I had to purchase as there were no other Grand Central services available that day. Emails have been going back and forth for weeks and they will not give in and admit fault. When I arrived at the station the staff told me I could have used my original ticket however as the email stated Grand Central only I had already booked a second (more expensive!) ticket. Terrible customer service, no integrity and absolutely frustrating to deal with.