1The company's ability to effectively deal with customer complaints is very important, which can help to increase business and provide a friendlier working environment.In order to do so, first, you should inquire about the customer's concern with a smile and use a friendly tone of voice when speaking. Second, listen thoroughly to the customer's complaints and avoid interesting him while he is speaking. Third, propose a solution to resolve the issue and apologize for thesituation.Last, contact the store manager if the customer's needs be accommodated.