I recently purchased the Swiss Flex Travel pass for 8 days. I am able to activate the card on the day of my choice. My question is do I need a physical card beyond the mobile ticket? I am in the US and travelling in about 8 weeks so want to be prepared. I tried linking the flex pass to the sbb app but it keeps asking for a customer number which I don't have. A follow up question, in purchasing additional tickets, how do I apply discounts using the Flex pass for excursions to Jungfraujoch for example. Any help would be great!
