Why I can’t add more card to my wallet ?

Hello Veromarie20,

Welcome to Apple Support Communities!

We want to help get your card added to Wallet on your iPhone. Try the steps here if you can't add your card:

"Learn what steps to take if you can't add a card to the Wallet app to use with Apple Pay.

1. Check that you're able to use Apple Pay:

• Contact your card issuer to see if they support Apple Pay.
• Update to the latest version of iOS, watchOS, or macOS.
• Confirm that you have Face ID, Touch ID, or a passcode set on your device. 
• Make sure that you are in a supported country or region.
• Check that your device is compatible with Apple Pay.

2. Check for service outages or connection issues.

3. Contact your bank or card issuer if you see the following error messages while adding your card to Apple Wallet: 

• Could Not Add Card 
• Invalid Card 
• Card Device Limit 

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."

This Apple Support page has the full details: If you can't add a card to Apple Wallet to use with Apple Pay - Apple Support

If the issue continues, please reach out to an Apple Support Advisor for further assistance: Apple Support

We hope this helps to resolve the issue and get the card added.

Cheers!