For Android players:
- Open the Google Play app
- At the top right, tap the profile icon
- Tap Payments & subscriptions > Payment methods > More payment settings
- If asked, sign in to Google Pay
You will then be able to change or edit your payment information via Google.
For Apple players:
- Open the Settings app.
- Tap your name.
- Tap Payment & Shipping. You might be asked to sign in with your Apple ID.
You will then be able to change or edit your payment information via Apple.