ElenaG Hello Luethouquaix86 I suggest to call the SBB Contact Center: +41 51 225 78 56 (24/7, waiting times may occur) Wishing you a nice day, kind regards ElenaG
RolandP Hello Luethouquaix86 Yes, it is by cancelling the current Swiss Travel Pass, and repurchasing for the new travel dates. The cancellation fee is CHF 10 per cancellation request. SBB can only cancel Swiss Travel Passes purchased from SBB. https://www.sbb.ch/en/help-and-contact/refunds-compensation/refunds-compensation/ticket-refunds.html Kind regards, Roland