How do I add a different account to pay my bill with

Hi GMA-56,

It looks like you need help, adding a payment source for your Apple Card. Check out the information below:

"Add a bank account

1. Get your bank account number and bank routing number.
2. Open the Wallet app on your iPhone and tap Apple Card.
3. Tap the More button , then tap Card Details .
4. Scroll down and tap Bank Accounts.
5. Tap Add a Bank Account, then follow the instructions on your screen.

You can add multiple bank accounts to make payments. The first bank account you add will be your default bank account."

How to make Apple Card payments - Apple Support

Cheers.