Guest YU-cards with funds can be used following these instructions:
- Swipe the Guest YU-card; there will be a prompt with a message stating that the card is not registered to any account, and it will ask whether or not the card needs to be registered under a Passport York account - click Yes
- On the following screen, type the Passport York login credentials
- From then on, both cards (the primary YU-card and the guest card) are now registered under the Passport York username. Both balances will be combined together, and the total balance will be available in the middle of the screen after logging in at the Balance field