It's a phishing email, you could forward it to Apple : reportphishing@apple.com , and then delete it.
Phishing and similar emails : Phishing & Other Suspicious Emails
Genuine iTunes emails : Identifying legitimate emails from the iTunes Store - Apple Support
Viewing your account's purchase history : See your purchase history in the iTunes Store - Apple Support (on an iOS device you can view the last 90 days purchases via http://reportaproblem.apple.com)
