Does anyone know whether LNER advance tickets can be bought say 1 minute before the train is going to leave. I am planning a journey where my bus will get to Berwick 3 mins before the train to London leaves, so obviously I don't want to buy an advance ticket in case the bus is late, but if it is on time LNER have removed off peak singles from this flow, so could I buy an advance if there is a cheap one available 1 min before the train leaves?
My other option is to buy a ticket through to Reading (my final destination) from the TVM but this would take longer so could cause me to miss the train if timings are really tight, although then I can obviously just get a super off peak single for a decent price. I cannot get the ticket to Reading beforehand since I won't be certain to be going this route until the day before by which time I won't be passing through any stations so I would have no opportunity to collect any train tickets, and obviously Berwick to Reading tickets are collection only.