If you need reimbursement vouchers, you should exchange them with the original valid identity documents used at the time of ticket purchase at the ticket window and ticket vending machine at the station 180 days (including the day) before driving or within the date of boarding. After the railway e-ticket is changed, the reimbursement voucher can be printed again.
Only one ticket can be printed. If it is lost or damaged, it cannot be printed again. Therefore, you must take good care of the reimbursement voucher. If you have received the reimbursement voucher but need to change it, you can reprint it. However, you need to return the printed reimbursement voucher before printing a new reimbursement voucher.