If passengers are unable to cancel within 24 hours then he or she will have to pay Eva air cancellation fee. Eva air charges a 50USD penalty for domestic flights and 100USD for International flights. Here are some important points that should be noted: In the case of refundable fare, passengers can get the remaining amount of the airfare as a refund that is transferred in the original mode of payment. On the other hand, in the care of non-refundable fare, the remaining amount of the airfare will be converted into a future credit voucher.
https://airlinespolicy.com/cancellation-policy/eva-air-cancellation-policy/