What does Ctrip's point of sale mean by killing people?

Ctrip APP has started to sell tickets, so hurry to buy train tickets.

But you can pay in advance and then go to the points system to help you kill.

Pay the fare in advance, and automatic ticketing means paying in advance. When you have a ticket, the system will automatically grab it for you, but you don't have to grab it. If you can't get the ticket, it will take many days to get a refund. It will always help you get tickets for two hours before the train leaves.