What is the 24-hour rule for KLM?
Under KLM's 24-hour policy, customers may modify or cancel their reservations by calling "+๐๐๐ญ-๐ด๐ฐ๐ฐ-๐ฐ๐ด๐ด-๐ฌ๐ด๐ณ๐ฑ๐๐ OR +๐๐๐ญ-๐ด๐ฐ๐ฐ-๐ฐ๐ด๐ด-๐ฌ๐ด๐ณ๐ฑ๐๐ (US)" within 24 hours of purchase without incurring any penalties or costs.
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