Ahh, that makes sense - in fact I just used a credit card to pick up linked online Shinkansen bookings from the JR-West ticket machines. (Those systems all see

Ahh, that makes sense - in fact I just used a credit card to pick up linked online Shinkansen bookings from the JR-West ticket machines. (Those systems all seem to use either magstripe or chip though, so maybe the wireless transaction could still use a different one, in theory).