Hi all, I bought a TP Airport Advance Ticket from LNER using their digital app for the 1653 Manchester Airport-Sheffield service. The booking confirmation itinerary came through correct for the 1653. However, when I got to Manchester Airport Station in good time for the 1653 as planned, I loaded up my ticket on my phone and for some reason it said only valid on the 1553 service, this contradicts my booking confirmation/itinerary. The 1553 had obviously long gone by this point, and I never planned to catch that train as if left before my flight arrived. I was quite abruptly told that I had to go buy a new ticket, which I did, but then I had to pay the walk-up fare (with railcard discount), meaning a journey that was going to cost me £9.85 ended up costing me just over £28. When I got on the 1653, my advance ticket seat reservation was there in the correct seat on the correct train that I had booked. I have screenshots/emails to confirm all of this. The problem I have here is that it involves 2 TOC's and I don't want them just blaming each other. How do I go about resolving this and who is responsible for refunding me (if I am due a refund)? LNER essentially issued me a ticket that was useless. The booking confirmation was correct though, hence why I didn't spot it until the start of my journey. TP then charged me again for the same journey at walk-up rates, even though I had a valid itinerary and confirmation, but a corrupted ticket through no fault of my own. Why should I pay again (and more) for a journey I've already paid for? There were some issues regarding TP's complete lack of customer service but that's not relevant here. I hope this is clear, if you need any further clarification please ask. All assistance appreciated.