I had very blond hair for the past few years.. with natural dirty blond on the bottom I recently decided to go brown... the salon left some blond strands which left my hair horrible grey looking. I stopped at a beauty supply store and they gave me some clarifying shampoo I'm so irritated with my hairdresser.. the gentleman in the beauty supply store said they should have never went that dark with my hair. Can I go get blond highlights? This is such a nightmare

First off, the salon should have never let you leave looking like that. They should have fixed it. They should still fix it. Try speaking to the salon owner. Anytime you go from blonde to dark, your hair needs a filler color put on first. It fills the blonde and then a color is applied after the filler. Ask your salon or beauty store to recommend one for you.