First, read the English article below.

Do not look at complaints as annoyances. Complaints provide essential information to a business. They point out issues that might be bothering many, many other customers. Tell yourself that complaints are a free form of feedback to your company, and they will allow you to solve new problems. Do not hide this information in the fine print. Let customers know clearly and simply what they should do if they are unhappy with your service. You should also take pains to ensure that the procedure is a simple one. Do not try to dissuade customers from returning items by making it a labyrinthine process: they might never return to your store. Make sure you listen carefully to your customers by using active listening techniques. Restate their concerns to make sure you understand them, maintain eye contact, nod at appropriate times, and avoid using jargon or skeptical language. Make sure that any questions you ask are to get necessary information, not to "entrap" your customer in any way. An angered customer wants to feel supported by your company. Make sure that you apologize and explain that you understand just how frustrating the situation is. This is an effective technique for defusing tension as well as beginning the process of making things right. You can tell an angry customer:  "I can see why is is so frustrating for you." "I am sorry that you were put into such a frustrating situation." "I understand that you are angry. I will try to make this right." If a problem arises, consider giving your customer different choices about how things could be made right. If you provide several possible solutions and allow the customer to choose, your customer will feel like she has regained some control over a frustrating situation. For example, you might say,  "I am so sorry that you received a stained shirt in the mail. Would you like us to send you a new shirt, or would you like your money back?" "I apologize that our contractor did not arrive at your home at the appointed time. We are happy to provide you with a 20%... 

Now, please write a short abstract for it in Indonesian. Abstract:
Ingatlah bahwa keluhan itu berguna. Sampaikan prosedur penyelesaian dengan jelas kepada pelanggan. Gunakanlah teknik mendengar aktif. Akuilah kesulitan pelanggan. Berikan pilihan kepada pelanggan. Selesaikan masalah dengan cepat. Katakan terima kasih.