How long does it take to submit the high-speed rail ticket change information?

If you change your visa from time to time, you will be reminded by SMS if it is successful.

The relevant provisions on visa change are as follows:

1. In order to facilitate passengers to adjust their itinerary, the pre-sale period of tickets is extended to 60 days, and the refund fee will not be charged if the ticket is refunded for more than 15 days (excluding) before driving.

Second, in order to make more passengers make full use of ticket resources, reduce the waste of transportation capacity, and facilitate passengers with existing tickets to adjust their itinerary, when there are more tickets left on other trains, the same tickets can be issued to the city instead. Specifically, other trains during the pre-sale period can be changed more than 48 hours (excluding) before driving; Within 48 hours before driving, you can change other trains before driving, or you can change other trains between 24:00 on the day of the ticket date after driving, without changing the ticket for the next day or after the ticket date; After driving, passengers can still transfer to other trains on the same day, but only at the ticketing station. ?