I've just eventually booked my gold reward first class ticket on the app. Went through seemingly ok but after trying to add the ticket to my wallet as usual the option vanished and all i was left with was an order saying 'seat reservation only, you must book a valid ticket'. So no ticket download option on the app. Went to my email and there was my gwr booking confirmation with barcodes for the journeys!. Concerned this might not be a valid ticket i phoned gwr who confirmed it was valid. Still nothing on the app.