MacDonald's Melville - Extremely poor service

MacDonald's Melville. Worst service, rude staff, loud and unruly kitchen staff. Client service is not important. Twice wanted to order items on the menu only to be told that they do not have it in stock. I was stuck in the drive through for 30 minutes - extremely slow service - and left without what I wanted. Today was the last straw. I will make sure that everyone I know boycotts MacDonald's Melville!