[Travel@Guide] What is the 24 hour rule for KLM?

KLM "24-hour rule" primarily pertains to refunds for extra flight options +【𝟭}-𝟴𝟴𝟴-𝟲𝟮𝟵-𝟵𝟴𝟱𝟵 (USA)or +{𝟭}-𝟴𝟴𝟴-𝟲𝟮𝟵-𝟵𝟴𝟱𝟵 (UK). Within 24 hours of purchasing extras like seat selection or baggage, customers can typically request a refund.