Bad service at Zara Sandton City.

I'm so disappointed with Zara in Sandton City I walked into their store at the man's section as I was looking for pants, as I was in side the store I had my closed cold drink (Pepsi) in my hand I was not drinking it or anything but one of the security guys told me I'm not allowed inside the store with that he pointed at my cold drink, I said OK and walked away I'm not going there ever again anything Zara am done!