Hello swissbio
Thank you for your request.
Yes, it is possible to pay your SwissPass monthly bill for the GA travelcard with a credit card by telephone on 0848 44 66 88 (CHF 0.08/min) or at one of our points of sale. SBB accepts various payment methods, eBill including credit cards.
Log into your e-banking account, select «eBill» and register for the electronic bill receipt in just a few steps. Then select «Swiss Federal Railways SBB» from the list of billers. You will then receive the bills for all GA Travelcards by eBill.
Instructions for the eBill are available under the following link: https://www.swisspass.ch/payment
We thank you for your loyalty.
I wish you a pleasant day
GiuseppeL