Pathetic customer service

I called on Monday to order a pizza on my way home from work, when I got there there was a que of over 50 people. A backlog of orders my order number was 501. When I got there orders that were going out where 398. People I was standing with informed me that they have been waiting for over an hour and a half there was still no pizzas for them. I waiting for an hour and a few minutes. I initially walked out as I was disgusted. How does it happened that at 18:45 you are only calling out order that were made at 4:30?? The level of incompetence and lack of staff really is affecting customers? Why is it that one needs to complain first for them to receive service? Can I get a clear understanding as this is a service that I am paying for. NO one is doing me any favours by providing me with service that is rightfully due to me.. Kindly rectify this, as you will loose a whole lot of customers. People ended up walking out as they couldnt wait anymore for their food. This is shameful and embarassing. In suburbs you will never get such incompetence, is this because it is located in a township hence no one cares about the level of service provided to customers?