To change your credit card information, sign in to your account, click your email address on the top right corner and select Settings.
Select the Billing tab and make any changes you need to your credit card.
Enter your card's Security Code and check the box next to "I have read and agree to the Pandora One Subscription Terms" to make any changes.
Click Save changes when finished.
If you purchased your subscription via Paypal, please click here for instructions on managing your subscription.