Hey there, and welcome to Apple Support Communities TyL1960,
We can certainly understand your concern and see you came to us from the article Add, use, and share boarding passes, tickets, and other passes in Apple Wallet.
We recommend checking out these steps for more information on what to do if you can't add a card to your Apple Wallet.
" Learn what steps to take if you can't add a card to the Wallet app to use with Apple Pay.
- Check that you're able to use Apple Pay:
2. Check for services outages or connection issues.
3. If you see the message "Could Not Add Card" or "Invalid Card," contact your bank or card issuer.
Apple does not approve or decline cards for use with Apple Pay. If your card was declined, contact your bank or card issuer.
If you need help adding a card, learn how to set up Apple Pay. "
For additional information, check out this link: If you can't add a card to Apple Wallet to use with Apple Pay - Apple Support
These steps will help ensure your device is working with ease and can fix common issues like the ones you’re experiencing.
Kindest regards!