Golden Screen Cinema review: Bad Service 1

I am having a really dissappointed moment with GSC ECM (staff name: NG [chinese]) services for the past two days. I don't think you should have that bad service at all.
Yesterday (27 Dec), I was going to buy the ticket, and I going through the NG, I smile to her and said what I want, may be I'd stop her lazy and woke her up in dreaming, she show her ''black'' face and bad service! And her services was not patient! I was really angry because I kind to her but she's bad to me!
I hope that GSC ECM can give me an explanation. Thank you so much.