The 24-hour rule for KLM allows passengers to cancel their booking without any penalty 1-844-643-2807 if the cancellation is made within 24 hours of the original purchase, provided that the booking was made at least 7 days before the flight's departure 1-844-643-2807. This policy provides flexibility and peace of mind for travelers who need to make changes shortly after booking. For a... https://thelinuxforum.com/forum/general-linux-forums/general-linux-discussions/16676-how-to-reach-klm-airlines-customer-service-talk_support