Can I change Advance single ticket?

Related questions

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2. What happens if you get on the train without a ticket?
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4. Is it possible to change a train ticket?
5. What would Nationalising the railways mean?
6. Are SNCF tickets refundable?
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Tags

1. #valid
2. #payable
3. #refundable
4. #reserved
5. #first
6. #before
7. #change
8. #travel
9. #administration
10. #advance
11. #prior
12. #fares
13. #reservation
14. #ticket
15. #difference
16. #departure
17. #shown
18. #however
19. #train