If you subscribed through www.jillianmichaels.com:
1. Log in to your account on jillianmichaels.com.
2. In the upper right corner, click on the Profile icon.
3. Click on Account > then Billing drop down.
4. Enter your new credit card number and hit Save.
*Note: If you are outside of the U.S, make sure to click on the "Outside of the U.S.? Click here link to fill out the necessary billing info."
If you subscribed through your iTunes account:
On your iPhone,
1. Go to your phone Settings > tap on [your name] > iTunes & App Store.
2. Tap your Apple ID at the top of the screen.
3. Tap View Apple ID. You might need to sign in or use Touch ID.
4. Tap Payment & Shipping.
5. Tap any payment method to change its information.
If you subscribed through the Google Play Store:
On your Android phone,
1. Open the Google Play Store
2. Check if you’re signed in to the correct Google Account.
3. Tap MenuAccount > Payment Methods.
4. Find the subscription you want to update.
5. Tap Update.