I use passbook for Starbucks mainly. However, recently I got sent a Gold Card from Starbucks So I then transfered all the credits from my old card into it. I set the gold card as my default card, and everything seems well. Except passbook! It won't let me change cards! It's still stuck at my old card, with $0... How do I add a new card on it? It has no options?? I have to say it's the most unintuitive stock app yet.