Can anyone shed light on this? I regularly use the GWR booking site and App for my e-tickets for frequent business journeys. Today I'm trying to book a Senior Railcard Off-Peak Single from Wigan Wallgate (1149) to Manchester Piccadilly (1236) for Thursday 7th April. On entering the details I'm getting a message stating "We can't find any tickets for this journey". If I search Wigan to Salford Crescent or Wigan to Stockport on the same train, fares are then displayed to book. Searches on the Trainline and Northern all reveal bookable tickets. Is there some strange anomaly here or am I going bonkers? I guess I can buy a Wigan-Stockport and stop short but just don't understand what is preventing me booking Manchester on this site.