Users can purchase GameChanger subscriptions in two ways:

• Through the iOS App Store
• Through the Google Play Store

The methods for updating your billing information will be dependent upon which method you used to purchase the subscription. 

Apple Subscription Billing

Change Your Payment Method on Your iPhone, iPad, or iPod Touch

1. Open the Settings app.
2. Tap your name.
3. Tap Payment & Shipping. You might be asked to sign in with your Apple ID.
4. From here, you can do these things:

• Add a payment method
• Update a payment method 
• Remove a payment method
• Change the order of your payment methods

For more information on how to view, cancel, or change a subscription billed by Apple please reference the article below: 

• Adjusting Apple Subscriptions

Google Subscription Billing

Change or update the payment method on your Android device

1. Open the Google Play app.
2. At the top right, tap the profile icon.
3. Tap Payments & subscriptions.
4. Select Payment methods.
5. Add a payment method of your choosing.

For more information on how to cancel or edit a subscription billed through Google Play, please reference the article below:

• Adjusting Google Subscriptions