FOR ASSISTANCE WITH ORDERS - iTUNES STORE CUSTOMER SERVICE
For assistance with billing questions or other order inquiries, please refer to our online support page by clicking here: http://www.apple.com/support/itunes/store/. If you cannot find the answers you are seeking in our robust knowledge base, you can contact us by visiting the following URL http://www.apple.com/support/itunes/store/, clicking on the appropriate Customer Service topic, then using the contact button or email form at the bottom of the page. Responses to emails will be provided as soon as possible.
Phone: 800-275-2273 How to reach a live person: Press 0 four times
Hours of Operation: Mon-Fri: 9am-5pm ET
How to report an issue with Your iTunes Store purchase
iTunes Purchase Problems: How to Report a Problem to iTunes Support
How to Get a Refund from the App Store
Getting Refunds for your iTunes Store Purchases
Canceling a Digital Subscription
Scroll down to the middle of the page where it says 'Refund'. That email address will go straight to a representative to get you a refund. I've done it about three times and got quick responses.