Bad customer service

I'm truly and mostly upset with the service of steers at Highveld Mall,I truly understand that most retail working people are tired but to show it to customers it's unacceptable...I waited in line for 20mins while the store wasn't that busy and the staff are busy talking to each other,we'll I placed an order online to avoid to waste time collecting my order and when I opened my meal it was like someone ate it and put it back in the box,with no sources very dry!!!!the way I was so angry I just gave the food to one of the car guards