Bad customer service

Me my brother and my son walked into McDonald's southgate @10:01 and made use of the self services computer to sit in and eat. People around us that came after us that ordered much more food then we ordered got there food before us. Now my son was getting restless at 10:22 as our food was not yet done and it's not as if the drive through was busy. I asked the manager Thabo what is happening and he just looked at me and walked away. Now is that customer service or do they not care. I had to make a noise to get noticed and get help. Is that how you get treated at McDonald's Southgate