Updating google autofill
If you're using a secondary computer, or you recently performed a clean installation of Windows 10, chances are your device isn't verified.
Go to Settings Sync your settings, and turn on the Sync settings toggle switch and make sure the Passwords toggle switch is also enabled.
The CVV code needs to be entered manually every time to you make a purchase.
If you want to delete a card, right-click the entry, and select the Delete option.