All complaints are similarly themed – something was supposed to happen that didn’t. A product doesn’t work, a repairperson doesn’t show up as scheduled, an expectation wasn’t met. In any event, your client was inconvenienced or worse. By the time the problem is severe enough for the customer to contact you, they are undoubtedly upset.If you respond to an unhappy customer by immediately trying to get to a solution, it can possibly backfire and make the customer even more upset. Being unhappy or angry with a company or product puts the customer in a highly emotional state, so the first thing you should try to do is get them into a more agreeable frame of mind.