Hello @pjchong
Thank you for your message. I checked our homepage. You’re wright the side change automatically to the Swiss Travel Pass. I transfer your message to our online support team, that they can fix it. You can buy your Swiss Travel Flex Pass under the following link: https://rail.myswitzerland.com/swissflexipass.html?language=en.
I wish you a nice time in Switzerland. Best regards, Sarah.