Why does my card have a balance?

So for background, I paid off my Apple Card in full back on February 5th. I then immediately called and got the card closed so it couldn’t be charged anymore and I could be done with it. But today I got a email saying it had a balance of $14.05 but there’s seemingly no way to check what the charge was. I’m gonna call and ask tomorrow but does anybody have any idea why I’m still getting charged or how to check?

So for background, I paid off my Apple Card in full back on February 5th. I then immediately called and got the card closed so it couldn’t be charged anymore and I could be done with it. But today I got a email saying it had a balance of $14.05 but there’s seemingly no way to check what the charge was. I’m gonna call and ask tomorrow but does anybody have any idea why I’m still getting charged or how to check?