You can change your Premium subscription payment method at any time. However, the method varies based on the version of the app you're using (Apple, Android, or web app).
Follow the instructions below. Be sure to make changes using the device/app that you originally used when subscribing to Premium.
- Apple (iOS): https://support.apple.com/en-us/HT202039
- Android (Google Play): https://support.google.com/googleplay/answer/7018481?co=GENIE.Platform%3DAndroid&hl=en
- Web app: Cancel your subscription, and then resubscribe and specify a new payment method.