Apple Pay isn’t working after update to 17.0.1
Using multiple cards linked to Apple Pay, none of them worked.
iPhone 12 Pro, iOS 17
Remove all credit/debit cards from Apple Wallet, log out of Apple ID, do a forced restart and then log back into your account and add a card. Try one card and if declined, please reply.
Sign out of iCloud on your iPhone, iPad, iPod touch, Apple TV, or Mac - Apple Support
Force restart iPhone - Apple Support