It may look like it came from apple.com, but that doesn't mean that it did so (it just makes it look more genuine) - the 'update now' link would probably have taken you taken to a non-Apple site for you to type in your id and password.
You could forward the email to Apple : email@example.com
I HAve got the same
From: Supporte@apple.com Your junk email filter is set to exclusive. Sent: 27 October 2013 05:48:22 To: Character set:Dear customerWe inform you that your account is about to expire in less than 48
hours, it is imperative to conduct an audit of your information to
now, using your itunes id.Why this email has been sent to you ?
The sending of this email applies when the expiration date of your
Id apple - overview • statistics business
Apple respects your privacy.
information for use of your personal data, please contact: http://www.apple.com/chde/legal/privacy/
this is not a notification of vat. copyright © 2013 itunes r.l. services All rights reserved