iCloud: Remove credit and debit cards from Wallet (or Passbook)
If you have an iOS device or Apple Watch set up to use Apple Pay, you can remove the credit and debit cards from Wallet (or Passbook with iOS 8.4.1) on the device by using iCloud Settings.
Go to Settings on iCloud.com, then click an iOS device or Apple Watch 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 credit and debit cards on the right, click Remove or Remove All.
If no cards are listed, the device isn’t set up to use Apple Pay.
If you remove credit and debit cards from an iOS device or Apple Watch set up to use Apple Pay, the ability to spend using those cards is removed, even if the device is offline.
After removing credit and debit cards, you can add them back using the Wallet (or Passbook) app on your device.