How do I change my apple bill to another credit card?

See this article about updating payment methods on various platforms: If you need to change or update your Apple ID payment method - Apple Support

"If you change your address, the credit or debit card information that you use with your Apple ID might be automatically updated by your financial institution, and you don't need to take action. But if there's an issue [such as you having a subscription or being a Family Sharing Organizer], add a new card first, then remove the old card."

Here is how you update your payment method on an 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.

If you want to keep the old card on there, don't delete it but make sure the one you want charged first is moved to the top of the card list.

Charges to your Apple ID, use the payment methods added to it in the order they appear in.

Follow the steps in the support document linked below to add a new payment method.

click here ➜ Add a payment method to your Apple ID - Apple Support

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