What should I do if I don't receive the refund and refund notice and information for the train ticket refunded at the counter?

At present, after successfully changing the visa or refunding the ticket online, passengers will generally return the money to their accounts within one week, and the refund will be returned to the bank card or account you originally paid. It will not exceed 2 1 working day at the latest. If the account is not received within 2 1 working days, passengers can complain to 12306. If you buy a ticket in cash at the train station window and then refund the ticket, you can get it directly in cash, deducting the handling fee; If it was a bank card or other online payment, even if the ticket was refunded at the train station window, it would be returned to the original card number or account.