I need to change my address and billing credit card number

This document explains how to 'Change, add, [review,] or remove Apple ID payment methods' on a Mac or Apple mobile devices; click here --> https://support.apple.com/HT201266

Change your Apple ID payment method if you don't have an Apple device --> https://support.apple.com/HT210755 - PC, MS Surface, Android, Chromebook, online at tv.apple.com

'If you can't remove your last payment method or use no payment method with your Apple ID' click here --> https://support.apple.com/HT203905

- When updating an old card and have ongoing subscriptions, or are the organizer of a Family Sharing group, you may need to first add the new card and make it the primary payment method before deleting the old card.

- A payment method is required if you're using your account with the App Store for the first time.

If you still have problems, click here --> https://support.apple.com/choose-country-region/media-services Select your country, then a product. If you don't see one that handles your issue then keep experimenting with selections until you reach one that gets you a chat session or a telephone call and get the representative to redirect you.

or:

Contact Apple for support and service --> "See a list of Apple phone numbers around the world." - https://support.apple.com/HT201232

Additional resources:

*'Payment methods that you can use with your Apple ID' --> https://support.apple.com/HT202631

The first document also tells you how to change the billing address:

On an iPhone/iPad:

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. To update the address for a payment method, tap the payment method, then edit your information. Tapping the method should reveal details for that method including the billing address. You might 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.

5. Edit the method then tap Done

Older iOS versions may vary slightly in the way you get to a Manage Payments window to be able to select a particular card.