Mr. Zhu was recently in Hangzhou and had some Xin Nian Cha (or fresh new years tea). Good Good Stuff. Amazing really. Just splendid. Mr. Zhu paid RMB 50/glass and thought it very reasonable.
Still Mr. Zhu thinks you got fleeced. If the girl was in on it, then her buying the box was just to return later. Let Mr. Zhu guess: she was short on cash so you paid the rest?