Fun Cinema — Ticket booking

I want to complain about ticket booking staff name :-Rani,
I went to book the ticket of show 4:30, I was in infront of line told her to book 2 ticket in back row because 5 seats were available at that time ...then she agreed to do so ...soon after some boys came nd told to book 4 ticket in back row then she just cancelled my ticket nd told me to book my ticket in front row ...I told her I don't want to..the. She just ignored it nd book that boys ticket nd when I told her that I will complain about you ...she said do whatever you want to do then she gave threat to me that come meet me after the show then I will show you what will happen.