https://community.spacewalkers.com/t/568-4031-is-expedia-actually-fully-refundable-do-you-get-a-refund-if-you-cancel-a-trip-on-expedia-is-expedia-free-cancellation-really-free/7008
https://community.spacewalkers.com/t/expedia-refund-eligibility-will-expedia-refund-me-if-i-cancel/7507
https://www.devex.com/people/expedia-refund-guide-is-expedia-really-free-cancellation-2290701