Sign in to your Apple ID account page and edit / update your Apple ID details -> https://appleid.apple.com
- On the Sidebar click Payment methods -> then tap Payments Methods and tap Manage payment method.
See also the following Apple articles:
Add a payment method to your Apple ID -> Add a payment method to your Apple ID – Apple Support (UK)
- If you want to change your card, you need to add first the new card, then remove the old card.
- or if you use your Apple Account balance, you need to set your Apple Account balance as your default payment.
Add money to your Apple Account balance -> Add money to your Apple Account balance - Apple Support
Payment methods you can use with your Apple ID
Payment methods you can use with your Apple ID – Apple Support (UK)
fyi: Not all credit & debit cards seem to work with App Store / iTunes Store, try a different one, or preferably a credit card. If your card is not accepted as a paymenf method, you need to contact your bank.
If you update your payment method or add funds to your Apple Account balance, It would take about 1 to 3 business days in order to process.
If you're still unable to update your payment method, Contact Apple Support.
if you still need help, get support from Apple directly -> Get Support or call Apple in your region see -> Contact Apple for support and service
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See -> If you can't add a card to Apple Wallet to use with Apple Pay
If you can't add a card to Apple Wallet to use with Apple Pay - Apple Support
- Apple does not approve or decline cards for use with Apple Pay. If your card was declined, contact your bank or card issuer.