Contacting the iTunes Store can be done by going to - http://www.apple.com/support/itunes/contact/. At the bottom left, you will see a "contact support" link. Just select it, then select "iTunes Store", and follow the on screen instructions. The final screen will give you an option to "email, chat or call" them. You may see one, two or all these options, however it changes depending on what they have available at the time of contact.