Leaving Wengen , Switzerland for Rome on 7/31/12. Will buy unbooked day of travel tickets to Spiez on 7/31( Spiez the correct departure city for Rome?). Trying to book Spiez to Rome tickets and getting few choices or only evening tickets on Trenitalia. Even if I were to book these tickets the ticket pick up option is at station only and Spiez is not a pick up point. E ticket does not appear to be an option. Am I tryng to book tickets too far out or am I too late? Should I be booking on TGV/SBB instead? Help!! Last part of my trip that requires booking and I would like to complete.