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: @EurekaForbes U got to b kidding me. Anu from your firm responded  when I sent the contact details.  #customerexperience
This tweet contains emotions: 
anger, disgust, sadness