KLM’s cancellation policy allows passengers [+????-????????????-????????????-????????????????] (USA) or [(+44) 8???????? 208 1????75] (UK to cancel their booking within 24 hours of purchase for a full refund, provided the ticket was booked directly with KLM [+????-????????????-????????????-????????????????] (USA) or [(+44) 8???????? 208 1????75] (UK. https://community.automationdirect.com/s/question/0D5PE00000PfcXp0AJ/refund-18444880875-what-is-the-cancellation-policy-for-klm