Originally Posted by
Phlebas
Oh, O.K., thanks for clearing that up. Do you have to do it before the original train's departure or can you call up and do it at a later date? (again, assuming you never picked up the original ticket). Thanks.
Last I knew, you could do it at any point in time.
However, I've been hearing rumors and I stress that they are still rumors at this point, that the policy may be changing in the near future. Changing in the sense that any reservation not cancelled prior to departure becomes non-refundable and non-exchangeable.
So personally I'd make sure to call before departure.