I am travelling from Peterborough to London with my wife on Fri 17th, returning same day after 10:30pm. I have searched on the national rail site and selected the 07:40 LNER, will probably travel back on Thameslink. LNER have sold me tickets, with seat reservations, on the 07:40 for £50:60 - 2 adults with disabled rail card but the ticket is an off peak day rtn, restriction E8? Is this ticket valid for the 07:40 ?