Email Phishing Scam

This morning I ordered a laptop direct through the Dell website, received a confirmation email and everything seemed to be fine. However, this evening I received an email supposedly from a Dell employee (and marked for internal use only) asking me to reply using my Business/Student email with my billing and shipping address otherwise the order would be cancelled. In addition the email also contains the correct order number.

Although it looks like a scam, the fact that it was sent so soon after the order had been placed is very concerning indeed.