I need help translating the following:

Your appointment [blah blah]231 has been confirmed for 1:30 PM to 4:30 PM on 04/20/2005. We appreciate your business and look forward to providing timely service to you.

Sincerly,

Dell Computer Corporation

Dude on the phone: “Sir, you do not have an appointment. Would you like to set one up?”

Fuck. All this for a warranty part that I could buy (and plug in myself) for $100 or so.