Task: Categorize the tweet's emotional tone as either 'neutral or no emotion' or identify the presence of one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @lebara - worst possible decision I could have made when arriving in the UK. Shocking service. Poor coverage. #unhappy
This tweet contains emotions: 
anger, disgust, fear, sadness