Do you have any customer support (experienced) people in your company ? Usually they have come across such behavior and help you dealing with them. Your immedi

Do you have any customer support (experienced) people in your company ? Usually they have come across such behavior and help you dealing with them. Your immediate goal should be shield your developers so that they can continue do work without any pressure. Next, are you clients afraid of you not meeting deadlines or asking something which cannot be added to the product? The reason i asked this because, i had to deal with such customers in the past where 1) Paranoid Customers- Usually i found they pressure you because there is someone above them putting unrealistic expectations / pressure, identify if someone like that exist and try to get a someone higher than your grade level to talk to them . 2) Satisfying Ego / Giving Importance- We found certain situations even though the changes which customer asking don't make sense or they are expecting unrealistic deadlines and feel that we are not giving the enough importance, during these situations getting someone like a director or Vp on call made them feel more important and deescalated the issue.