If you would like to update your billing information, you can do so according to how you subscribed:
iTunes
Visit this link on Apple to update your billing information in iTunes directly
Google Play
Visit this link on Google Play for instructions on how to update your billing information
Purchased on the web:
- Visit http://account.stingray.com
- Log in to your Stingray account
- In the left-hand menu click on Subscriptions
- Next to your Stingray Music subscription click Manage
- You will be redirected to the page where you can edit your billing information.