An iTunes Support Advisor will contact you within 48 hours via the email address associated with this Apple ID to resolve your request.
Until then, try checking to see that you have an adequate Internet connection speed. The amount of time to download content varies according to the file size and your Internet connection speed. A broadband connection is highly recommended for larger content. To find out more about your Internet connection speed, contact your Internet Service Provider (ISP).
For additional help with this item, contact iTunes Store Support.