Dunkin' Donuts

I frequent this Dunkin' Donuts, almost every week day since it's on my way to work, and every time something in my order is wrong. My normal order is a Large Hot coffee with skim, and a bagel (toasted with butter on the side) with hashbrowns. Simple enough for a coffee restaurant. On three separate occasions, my order has been wrong with my bagel. The first occasion, I received my bag with just a sliced bagel in it, no butter, no knife, no hashbrowns. I hadn't realized this until I was already at my desk at work, which put a damper on my morning. The second time, there was butter ON the bagel, not on the side. Today, I decided to check the bag before I got to work, and there's no butter. I kindly ask the lady at the window if I could have butter since there's none in the bag, and she comes back with one butter. I question this, and she says "she SAID she put butter IN THE BAG". I will not use this dunkin' donuts, even if I have to leave earlier and drive out of my way. Ridiculous.