KLM's policy allows passengers to make changes within a 24-hour timeframe. They may cancel their reservations without facing any penalties+𝟰𝟰"𝟮𝙊"𝟴𝟭𝟮𝟰"𝙊𝟲𝟲𝟲 & +(𝟠𝟠𝟠)//𝟵𝟲𝟯//1444. For assistance, kindly reach out to KLM customer service.