Hello @DK2
Thank you for your question.
You can find your Travelcards on your online account on www.swisspass.ch. If you have not registered yet, I recommend you to do this right away. If you connect then with your login data on the SBB Mobile App, your Half Fare Travelcard will appear.
If it does not work out, please call our Contact Center 0848 44 66 88 (CHF0.08/Min.)
I wish you good luck and an excellent afternoon. Greetings RahelW