I am new to the SBB mobile app. I purchased a half fare card and it is in my app. It is valid starting at the end of April I want to purchase a ticket from Zurich to Chur in the morning on May 1. I see there is an 8:38 train and at the bottom of the screen there is a red button that says “Tickets from CHF 14.20” When I select that I see a regular offer for CHF 42.00 some add-ons a saver offer from 24.80 and additional offers of CHF 17.20, CHF 30.00 and a reservation only for CHF 5.00. If I select Saver offer the red button at the bottom say s"Purchase ticket for CHF 24.80. Does that include my half fare card discount? If not how do I ensure it uses my half fare card?