⟦((Direct~!!~KLM))⟧What is the 24 hour rule for KLM?

What is the 24-hour rule for KLM? KLM Airlines 24-hour rule allows passengers to cancel or modify their flight bookings ✈ +1-808-470-7107 (USA) or +1-808-470-7107 (UK) without incurring any penalties, provided it's done within 24 hours of the original purchase.
Ｗｈａｔ　ｉｓ　ｔｈｅ　２４－ｈｏｕｒ　ｒｕｌｅ　ｆｏｒ　ＫＬＭ？　ＫＬＭ　Ａｉｒｌｉｎｅｓ　２４－ｈｏｕｒ　ｒｕｌｅ　ａｌｌｏｗｓ　ｐａｓｓｅｎｇｅｒｓ　ｔｏ　ｃａｎｃｅｌ　ｏｒ　ｍｏｄｉｆｙ　ｔｈｅｉｒ　ｆｌｉｇｈｔ　ｂｏｏｋｉｎｇｓ　✈　＋１－８０８－４７０－７１０７　（ＵＳＡ）　ｏｒ　＋１－８０８－４７０－７１０７　（ＵＫ）　ｗｉｔｈｏｕｔ　ｉｎｃｕｒｒｉｎｇ　ａｎｙ　ｐｅｎａｌｔｉｅｓ，　ｐｒｏｖｉｄｅｄ　ｉｔ＇ｓ　ｄｏｎｅ　ｗｉｔｈｉｎ　２４　ｈｏｕｒｓ　ｏｆ　ｔｈｅ　ｏｒｉｇｉｎａｌ　ｐｕｒｃｈａｓｅ．