I'm already a Premium subscriber. How do I redeem my gift code?
If you are already an existing Premium subscriber, you will not be able to redeem your gift code until your current subscription expires. Please cancel your current subscription and allow the remainder of the subscription to expire, and then try redeeming your gift code.
To cancel your Premium Subscription please follow the instructions below based on how you subscribed.
If you initiated your Premium Subscription through iTunes app store (from your iPhone/iPad):
Go to Settings > iTunes & App Store.
Tap your Apple ID at the top of the screen.
Tap View Apple ID. You might need to sign in or use Touch ID.
Tap the subscription that you want to manage.
Use the options to manage your subscription.
If you initiated your Premium Subscription through Google Play store (from your Android phone)
Launch the Google Play Store app.
Tap Menu -> My Apps -> Subscriptions and tap on Stitcher.
If you initiated your Premium Subscription through the Stitcher Website: