If you're billed by Apple, your payment information is managed by (Link opens in a new tab)Apple. You can update your payment information by completing the following steps:
Open the Settings app on your iPhone or iPad.
Tap Payment & Shipping. (You might be asked to sign in with your Apple ID).
Tap your desired payment method, then edit your information.
(You may need to enter the security code that's printed on your credit or debit card. If you see Apple Pay after the last 4 digits of the card number, go to the Wallet app to edit the card information).
If you're billed directly by Philo, you can update your payment information on your (Link opens in a new tab)Account page online.