I have an apple care and billing problem appearing on my settings of my new phone. Old Card declined because it was cancelled and It won’t recognize a new card. I’m currently in another continent hence not possible to contact apple directly
It could be that you cannot add a new card because you're not in your home country where the card is from
See this article for further reference
If your payment method is declined in the App Store or iTunes Store - Apple Support
I would recommend that you contact apple support while you can
Apple care billing problem
