Disgusted at the staff

I was so disgusted at the cashier at that store she helped my daughter b4 me then when it was my turn she took my order gave the slip 2 the grillers then walked away and ignored me after about half hour I asked where my food is she told me she can't remember helping me and can't find my slip and walked away and spoke 2 the other staff and they in return stood and stared at me as if I was telling a lie and up till 2day I never received my meal i wouldn't recommend anyone 2 eat there