<< We, Japanese, don't complain about a product or poor service so much. We don't always satisfied with the service, but because of our modest characteristics, we don't complain so much about the products. When I complain about a product, I prefer to use a phone. On the other hand, by using an E-mail, we can ask some questions to a company even in a foreign country. I prefer to complain in person by using a phone. When I first bought my personal computer last year, I didn't know how to operate my computer and how to connect to the Internet. In such a case, in a case I can not use an E-mail, it would be better to ask a question by phone. If I write a letter to a customer support center, it will take at least 1 week to get an answer. On the other hand, if I ask my question in person by a phone call, I can get an answer immediately. If you can use E-mail as one of your communication methods, it might be better to complain in writing. E-mail enable us to contact companies even in a foreign country. When I can't find a book in my country, I usually find it in a foreign website. I don't like this so much, because if I bought a book in a foreign online bookstore, sometimes the delivery cost is more expensive than the book itself. When I first bought a book in a foreign online bookstore, I was asked if my credit card number is valid. I couldn't understand why I was asked such a question, because it was certain my credit card number was valid. I thought I didn't make a mistake when I typed my credit card number in the website. So I replied that, "If you want to know my correct credit card number, please notice me. Then I will notice you my credit card number.". I didn't get no answer from the bookstore, instead, a book I ordered was sent to me after one month or so. Except for such a case, I prefer to complain in person, this is because by contacting directly in person, we can know exactly what we want immediately.