Worst attitude from manager

Went to McDonald's in Trade Route mall on the 21/03/2019 and ordered 2 large meals. Only received 1 packet of chips and when I went back to the restaurant to inform them the manager Nobantu who packed my order told me that she packs as per the order received and that I only ordered 1 meal. She totally dismissed me there. I had to ask one of the cashiers for help and he called the cashier who assisted me who then gave me a packet of chips that was missing.

The manager has a stinking and don't care attitude and she should not be dealing with customers.