Is there a service fee for cancelling an additional service? February 18, 2022 08:21 Updated You can get a refund without a cancellation penalty until the pre-sale deadline for each additional service. Related articles Will I be able to change or cancel additional services after applying for the services? I want to know about the rules for refunding domestic flight ticket. I have canceled my reservation, but why is there a charge for the purchase still? Tell me about the conditions for exemption of the refund fee.