(20 May 2016, 9:48 am)Andreos1 wrote If you do and are only paying for the GNE service, it maybe worth getting a 3 zone day ticket.
I have no idea if you can get a return on the X9/10 or how much it would be compared to the 3 zone ticket.
and this would be £7.80 if you own the key card and are paying full fare.