Urgent! ! ! How to get to the New Zealand Immigration Bureau from Beijing West Railway Station?

There is a through train at the west station. The original bus was 823, but now it seems to have changed its name. You are looking for a bus to the Tayuan, which should be around 6##. Get off this bus, it is the office building of Tayuan. The immigration office is on the fourth floor or several floors of this building. Just ask the doorman. This section of the road is congested, and the immigration office closes at 3 or 2 pm. Please watch the time.