Activity
- https://support.google.com/googleplay/android-developer/thread/313885299?hl=en&sjid=9038067517542561872-NC
- https://support.google.com/googleplay/android-developer/thread/313885645?hl=en&sjid=9038067517542561872-NC
- https://support.google.com/googleplay/android-developer/thread/313885770?hl=en&sjid=9038067517542561872-NC
- https://www.devex.com/people/what-is-the-24-hour-rule-for-klm-klm_understanding-2204243
- https://www.devex.com/people/what-is-the-cancelation-policy-for-klm-get_full_refund-2204336
- https://www.devex.com/people/what-is-the-cancelation-policy-for-klm-get_full_refund-2204336
- https://www.devex.com/people/how-to-fix-first-or-last-name-errors-on-klm-tickets-free_klm_guide-2204368
