I will arrive in Xian from Shanghai by G-train in the afternoon on 6/25.

1. No, you can only take the free shuttle bus by showing the train ticket and the entrance ticket to any attraction of Lintong on the arrival day.
2. From the North Railway Station to Bell Tower Hotel: Take metro line 2 to the Bell Tower Station first. After arriving, you can find the hotel easily according to the English signs inside the metro station.