Bad service

I bought 3 streetwise 1 m/l +m&g 1 small coke I bought my meal from Nelly She was so slow that i stood there waiting for my food ,she was dragging her feet and almost 10 people behind me got there meals. People were buying ten pieces complicated food and they got their food ealier than me i stood 30min for my food.the other thing the tables are so dirty i had to remove the dirth before i sit down this is very wrong