Hi bullinchinashop,
Thank you for participating in the Apple Support Communities. We understand you're unable to use your boarding pass in the Wallet app. You'll want to make sure you're following these steps: Add, use, and share boarding passes, tickets, and other passes in Apple Wallet - Apple Support.
"How to add a boarding pass, ticket, or other pass to Apple Wallet on your iPhone
- Open the app, email, notification, or other communication that contains your boarding pass, ticket, or other pass.
- Tap Add to Apple Wallet.
- Follow the instructions on the screen.
- If necessary, tap Add in the upper right corner.
If you don't see an option to add your boarding pass, ticket, or other pass to the Wallet app, contact the merchant or company that issued it to make sure they support passes in the Wallet app.
When you add a boarding pass, ticket, or other pass to the Wallet app on your iPhone, you automatically add it to the Wallet app on your paired Apple Watch.
Learn how to remove a pass or ticket from the Wallet app.

Use a boarding pass, ticket, or other pass in Apple Wallet
When you add a boarding pass, ticket, or other pass to the Wallet app, you can use it with your iPhone or Apple Watch.
How to use a boarding pass, ticket, or other pass on your iPhone
- Open your pass:
- If you receive a notification, tap it. If prompted, authenticate with Face ID, Touch ID, or your passcode.
- Otherwise, double-click the side button (iPhone with Face ID) or double-click the Home button (iPhone with Touch ID). If prompted, authenticate with Face ID, Touch ID, or your passcode.
2. If needed, tap your default payment card to see your other cards. Then tap your boarding pass, ticket, or other pass, and authenticate.
3. Scan or tap your iPhone at the contactless reader, or present it to the attendant."
Take care.