Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: . @KotakBankLtd @udaykotak official got in touch. Issue not addressed. #unhappy #patheticservices
This tweet contains emotions: 
anger, disgust, sadness