Hey aolimba,
We'd be happy to help out with getting a card added for use with Apple Pay. In the screenshot you provided, you'll see a + in the top-right corner of the screen. You'll want to tap that to add a card.
"Add a new card on your iPhone
- In the Wallet app, tap the Add button .
- Tap Debit or Credit Card.
- Tap Continue.
- Follow the steps on the screen to add a new card. If prompted, choose your bank or card issuer from the list or find them using the search bar.
- Verify your information with your bank or card issuer. They might ask you to provide additional information or to download an app before approving your card for use with Apple Pay.
- If you have a paired Apple Watch, you have the option to also add the card to your watch."
For more info, check out: Set up Apple Pay - Apple Support
We hope this information helps out.
Take care!