cvc code

No results for ‘I wish to collect the CVC code of a client whihc did not show-up". This no-show triggers the creditcard to be visible, but there is no cvc code in this information, which probably is available at Booking.com. How do i get this, because via website i cann ot get the cvc code or send a request for it. so I do this via this customer account to inform you about t his problem ‘