Please analyze the tweet "Unbelievable takes 10 minutes to get through to @BarclaysUK then there's a fault and the call hangs up  #treatcustomersfairly" and classify its emotional content. Choose from the following emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. If no emotions are detected, respond with "neutral or no emotion".
anger, disgust