Give customers open 500ml cooldrinks

<p>On the 8th of November my husband went to ChesaNyama in Steelpoort to buy food and cooldrinks. When he arrived home we saw that both my cooldrink and his are already open and some of the cooldrink was gone. How can ChesaNyama alow their workers to give their customers second cooldrick which someone already drank from? Poor service!!!!!</p>