I bought a ticket (£103.90) to go from London Euston to Liverpool Lime on 23rd February and returning 25th February. I did not use the outgoing ticket Liverpool Lime Street. On the return to London Euston the train was cancelled. So I tried for a refund, which I am entitled to.The trainline app says contact them using RR1. There is no telephone number or email to contact them. Very poor and unprofessional. According to the reviews other customers have had the same issue. I would not recommend trainline app. If you are going to use the trainline make sure travel journey is than less £20. I will await the reply from Trainline.