LONDON to GLASGOW YP RAIL TICKET £18 ?

Extremely cheap ticket for travel to Glasgow from London Euston on 06-08-12 at 23:50. Meet me at 23.30 prior to travel at Euston and I will exchange the ticket for 18. Be aware that the ticket is for the sleeper that gets into Glasgow at 7.20am on 07-08-12. Also note that the ticket is a young persons ticket, thus you must have a valid YP card to use this ticket. Text me on 07500146141 Thank you, David