Unable to add cards to my Apple Wallet
I have checked with the issuer
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Original Title: no cards will add to my wallet
Any error message given while setting up Apple Pay?
Set up Apple Pay - Apple Support
Does your banking institute support Apple Pay?
Places that support Apple Pay - Apple Support
Also have a look at the general troubleshooting tips in this article:
If you can't add a card to Apple Wallet to use with Apple Pay - Apple Support