Hi igm2103
Thank you very much for your request.
We are receiving many queries at the moment. For this reason we could not answer any earlier and apologize for the delay.
For urgent queries, we recommend you to call us under the following telephone number: +41 (0)848 44 66 88 (CHF 0.08/min.) or go to a SBB ticket counter. If the ticket is valid only for this train, a new ticket must be purchased.
I hope that you had a pleasant trip.
Greetings and have a nice day.
NadineS