What is the cancelation policy for KLM? [ASK dispute]

https://www.devex.com/people/what-is-the-cancelation-policy-for-klm-2208816 https://www.devex.com/people/what-is-the-cancelation-policy-for-klm-2208816 https://www.devex.com/people/what-is-the-cancelation-policy-for-klm-2208816