iCloud: Remove cards from Apple Pay and Wallet in iCloud Settings
If you have set up credit, debit, or prepaid cards for Apple Pay, or student ID or Express Transit cards on your devices, you can remove the cards in iCloud Settings.
Go to Settings on iCloud.com, then click a device listed below My Devices.
If you don’t see the My Devices section, your account just has access to iCloud web-only features. To gain access to other iCloud features, set up iCloud on your iOS device or Mac.
Below the list of cards on the right, click Remove or Remove All.
Credit, debit, and student ID cards are removed even if your device is offline. Express Transit cards are removed the next time your device goes online.
If no cards are listed, you haven’t set up Apple Pay or other cards on your device.
For information about adding cards back to a device, see the documentation that came with the device.