Yes, you must adhere to the instructions on the website page if you want to cancel your Rex Airline ticket using the official website. Rex refund policy state that you can only obtain a full refund if you cancel your ticket within 24 hours after booking; if you don't make it within the risk-free 24-hour window, your refund will be deducted appropriately. Let's say that you want a reimbursement. You need to follow certain procedures in that case in order to get a refund. Refund procedures at Rex Airlines guarantee a complete refund if your ticket is canceled within the 24-hour period. https://sites.google.com/view/rexairlinescancellationpolicy/home