The conversation between human and AI assistant.
I have ordered a book on Amazon. But I have not received the book even after 2 days of delivery date. What should I do now?
Okay. Can you tell me how I can contact their customer service department?
Sure. You can find Amazon's customer service information by going to their website and clicking on the "Help" button. From there, you can choose to either call them or chat with a representative. Alternatively, you can find their customer service number on your order confirmation email.