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: tesco. why OH why cant my Visa electron be accepted on line , I am 55 , NOT 15 ?? #shocking
This tweet contains emotions: 
anger, disgust, surprise