Buying a book

This semester, we read a book” The Kite Runner” in advanced reading class. This book has a lot of meanings in the sentences. Sometimes I could not understand by reading the English sentences, so I decided to buy the Chinese translation book. Then I searching from the book stores on the internet and choose King Stone book store and bought the book. After I got my book from the king Stone book store, I found that my book had some mistakes. So I bring it to the book store and wanted to change my book. The clerk told me that if I want to change my book, I had to write the exchange books list. Now, there had already passed one week, and I was still not got my book. I went to King Stone and asked the clerk, she told me that I had to have a phone call to the service station. Oh, it’s troublesome. When could I get my book?