【正确答案】Dear manager,
I am a student of Beijing University. Here I write to complain an unpleasant experience in your bookstore.
Yesterday I bought a Chinese-English dictionary in your bookstore. During my first time using it, I found that several pages had already been broken. So I went back to the bookstore to have it changed. To my surprise, the
shop assistant refused to change it for me. When I mentioned the broken pages, he insisted that I had torn them. They had no patience to hear my explanation.
Of course, I had to come back with the broken dictionary. Therefore, I write to you hoping that you can make them improve their service quality.
Thank you for your concerns.