I did it online for the first time yesterday (also don't trust their fairly crappy Oyster equivalent) and it activated when I went through the barrier 15 mins later - perhaps not as terrible as it once was!
u/kai_enby you can buy a smartcard season ticket from the ticket desks or from the machines - think it's "add season ticket" or something. Would recommend getting one - if you use it 10 times a week and occasional other times it's definitely worth it. |