Issue: You receive an error “No YubiKey inserted” or you press the YubiKey button and no text is sent or the keyboard setup assistant doesn’t appear on Mac OS X. Generally you insert your YubiKey and it is not recognized by the application or command line tool. Solution: You have a U2F-only key and these keys cannot be configured or personalized.
Issue: You have questions about your order (how to return your order, how to track your order). Solution: Send email to firstname.lastname@example.org