Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent 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