I would call them, let them know that they shipped you the wrong knife, and then just ask, "How do I get the correct knife, and how do I ship back the wrong one?" If the clerk mentions a long ship time, ask to speak to a manager. Let them know that you would like a quicker remedy to their mistake, and as a customer, should at least get that. If they tell you that they cannot speed things up, I would do what they ask, and then never order from them again. I would also report it in Good, Bad, Ugly thread of your objective experience.