On the JR WEST ONLINE TRAIN RESERVATION website, reservation changes and refunds can be applied online between 5:30 a.m. to 1:50 a.m. the next day excepting times of system outage due to maintenance, etc. (Payments made at the station cannot be refunded online)
On the JR WEST ONLINE TRAIN RESERVATION, reservation changes and refunds vary depending on whether the ticket was received or not, or whether the reserved train departed or not, as well as payment method. For details, please visit the JR West Japan website.