What is the 24 hour rule for KLM?{GeT~Customer~Service}

[hidoci6284]

KLM's 24-hour rule permits travelers to make changes to their bookings or cancel their flights by phone at " +𝟭-𝟴88^321[2460] (USA) & +44⇋𝟪08⇋175↱7375 (UK) ) or =+𝟙-𝟠88-321-2460. (USA) & ("+1~888-"321"2460 (USA)(UK)# (US)" inside 24 hours of buy without causing any punishments (Charges) or expenses.