I am attempting to update my payment method with the same card new expiration date and cvv code. Apple update won’t allow it. When I attempt to remove the old payment method and add a new one, it won’t allow it. Who do I call?

To find out how to remove a payment method, and what to do 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 (see: If you need to change or update your Apple ID payment method - Apple Support ).

If you want to contact Apple itself about an issue of this nature, try --> Choose your country or region - Official Apple Support