12306 SMS prompts seat adjustment.

When passengers cannot take the bus according to the date, train number, seat and berth recorded on the ticket due to railway responsibility, the station and bus will be rearranged appropriately. If the rescheduled train, seat and berth are higher than the original ticket level, the excess fare will not be replenished; If the ticket is lower than the original ticket, the bus station or station will refund the fare difference, and no refund fee will be charged.

Passengers have to change seats and sleepers on the way, and the train has the transport capacity. If the fare is higher than the original ticket after the change, the premium ticket will be sold and the fare difference and handling fee will be charged; If it is lower than the original ticket, the fare difference will not be refunded.

Change of visa:

Visa change refers to the visa procedures that passengers need to go through when they change their boarding date, train number and seat (sleeper). The railway department reminds passengers that the change is based on the railway transportation capacity (that is, tickets can be sold), only the boarding date, number of trains and number of seats (shops) are changed, and the departure station and arrival station (except the same city station) are not changed.

Before changing the travel plan, passengers should check whether the train they want to take has enough tickets through 12306 website, 12306 customer service telephone, ticket window display and other channels, so as not to affect their travel due to lack of tickets.

Refer to the above contents: 12306- train change or delay