How to handle restaurant customer complaint effectively

How to handle stress? How to communicate with others effectively The store has a special department to handle customer compla customer complaint is hard to solve,is there any simple but How to handle this undelivered shipments ? However ,how to design the salary system of effectively moti How to Write a Letter of Complaint(如何写投诉信) How to manage deposit goods from customer? how to operate customer consignment in sap? 请用英文回答一下问题：How would you handle customer problems?200字.给点精髓啊 how to handle the ecological crisis 英文的 she knows how to handle a fast car.翻译