How do I change my address and credit card info?

See this info on how to change your payment method

Update your payment method on your iPhone or 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. Tap Add Payment Method, enter the new payment method, then tap Done.
5. Tap Edit.
6. Tap the red delete button next to the old payment method, then tap Delete.

Update your payment method on your Mac

1. Open the App Store.
2. Click your name or the Sign In button.
3. Click Account Settings.
4. Next to Payment Information, click Manage Payments. (If you're using an older version of macOS, click Edit next to Payment Type.)
5. Click Add Payment, then enter the new payment method. Click Done.

Update your payment method on your Windows PC or Microsoft Surface

1. Open iTunes.
2. In the menu bar at the top of the iTunes window, choose Account, then choose View My Account.
3. Choose Manage Payments. (If you're using an older version of iTunes, tap or click Edit next to Payment Type.)
4. Choose Add Payment. 
5. Enter your new payment method, then choose Done.

To change your address on your Apple ID see this instructions

1. Go to settings

1. tap your name
2. Tap payment and shipping
3. Tap your address to edit it

See the support document "Add a payment method to your Apple ID" by clicking on this link -->

Add a payment method to your Apple ID - Apple Support

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

There are also explanations of how to do this on a Mac or a PC.

To find out how to remove a payment method, or if you can't remove your last payment method or use no payment method with your Apple ID, read this article --> Remove a payment method from your Apple ID - Apple Support

- Ongoing subscriptions and Family Sharing organizers must always have a payment method present. To edit the cards used for those you may need to first add the new card and make it the primary payment method before removing the old card ( If you need to change or update your Apple ID payment method - Apple Support ).