Hello Dakaurroath62
The SwissPass is only the card where all travelcards are saved. If you mean the Half Fare Travelcard, please note that it has an automatic renewal and all invoices are visibile on your account on swisspass.ch.
If you had another travelcard, like a Point-to-point travelcard, and it has expired, you can buy new directly on SBB.ch.
For more information and support, please call us at 0848 44 66 88
(CHF 0.08/min.) or contact us through our live chat.
I wish you a lovely evening,
Chiara_S