Refused entry with dietery drink

<p>In Krugersdorp at key West mall .</p> <p> </p> <p>Saturday afternoon the cinema was empty and i brought a non sugar drink for my condition and i was refused entry. I completely understand nu metros policy regarding outside food but this was different i just don't understand why this would be such an issue especially considering the cinema was so quiet and it was a small single item.</p> <p> </p> <p>Manager was professional but i just expected better of the cinema