They are more useless than a government service

How do you lodge a complaint against these idiots? I ordered a book nearly two weeks ago and it was supposed to be delivered today. The book was for a birthday this weekend. Now I see these *******s moved the delivery date by a week and didn't even bother to notify me. Absolutely useless people. How difficult is it to deliver a ****** book? I could've imported it by now. Will never by from them again. They've really become more useless than the government services.