Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: @Activehours I need someone to reply back to me immediately. I am not happy and not getting timely responses through the app! #help
This tweet contains emotions: 
anger, disgust, sadness