How to upgrade through auspicious bidding twice?

Auspicious bidding, upgrade, secondary bidding.

1, 48 hours before the departure time, if the business class is not full, a competitive upgrade will be started. According to different routes, the lowest starting price will be given. Minimum starting price of some routes 199 yuan. The auction results will be announced 4 hours before the departure time. If there is no competition, it will be refunded automatically.

2. At the boarding gate after security check, if the business class is not full, the upgrade quota will also be released. At this time, pay attention to the broadcast while waiting for boarding. If there is an upgrade opportunity, broadcast what should be broadcast. After hearing it, run to the gate counter as quickly as possible and tell the staff that you want to upgrade, and quote you the lowest price for upgrading. Another way is to upgrade at the auspicious app boarding gate, self-service, the price is the same, but there is a time limit. It can only be operated 70 minutes before takeoff.