Changing card for Curve Subscription Issue

Hi
I got a new card to the account linked to where my Curve subs come from so I added the new card and when to change it in card settings to be the card that is charged for my Curve Black subs.
However, once I put the 3-digit CVV in there is no option to verify.

I tried to use help within the app, which is useless. You cannot see what is being typed until you cancel, and then you see the text and the send button but you can’t get at it without deleting or cancelling the whole thing.

So now my Curve is useless and out of my wallet because I can’t activate this new card for my subscription.