Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
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