Hygiene Standards

Good morning, Last week I was at Burger King, Willow Road, Lorraine, Port Elizabeth. Placed my order with a cool drink. The person took the paper cup putting her whole bare thumb into the cup. When I asked for another cup without her thumb in the cup she sniffed every hard. Where is Burger King's hygiene standards as they work with food and the public. There was no supervisor to be seen on the floor. Thanks Hans