I have changed the expiration date on my amex card listed on my account.

Thanks for the update warrenhudson,

For further assistance with payment and billing, you will want to Contact Apple Support so that they can look into this with you directly.

Thanks for using Apple Support Communities!

Understood warrenhudson,

Did you have any active subscriptions with the card in question? If you don't have any active, are you able to delete the payment method entirely and add it fresh?

Cheers!

Hello warrenhudson,

We see that you recently updated your payment method as well as reviewed If your payment method is declined in the App Store or iTunes Store. To make sure that we understand, could you let us know what's happening? Was your updated payment being declined, or was it declined prior and that is why you updated? Provide us as many details as you can so that we can assist.

Thanks!