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: @airtelindia have some issues with my broadband bill ,I am charged for the month before I signed up with airtel..
This tweet contains emotions: 
anger