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: @VodafoneUKhelp @VodafoneUK wow!! My bill is £44.77 and hav a text from u to prove that and you have taken £148!!!!! #swines  #con!
This tweet contains emotions: 
anger