I tried to make an Apple Pay payment and it got declined. An old card I cancelled months ago after it got hacked has taken the place of my current card

I just tried to make an Apple Pay payment and it got declined. I check my Apple Pay card details and an old card I cancelled months ago - because it got hacked - has taken the place of my current card, which I used less than an hour ago with Apple Pay.

Have I been hacked?

It it also says I can’t delete it as there is a subscription tied to it. I don’t have any subscriptions.

Help!

[Re-Titled by Moderator]