For the Spanish language support forum, please register your account at: communities.apple.com/es/welcome.
For contact with the Apple Support staff in Spanish speaking countries, find a local phone number from the list as presented here: Comunicarse con Apple para obtener servicio y soporte técnico - Soporte técnico de Apple
To redeem codes for digital copies, verify that these offers mention support for Apple iTunes. Not all do.
To redeem codes for digital copies, follow the procedure as outlined here: Redeem digital copies of DVDs or Blu-rays in the Apple TV app or iTunes for Windows - Apple Support.
If you can’t redeem the content code
• Look for an expiration date on the packaging.
• Make sure that you enter the correct characters. Some letters and numbers look alike.
• Make sure that the packaging on your item says that the Digital Copy code will work in your country or region. For example, you need a U.S. Apple ID to use a code from a U.S. DVD, and you need an Australian Apple ID to use a code from an Australian DVD.
• If your Digital Copy DVD, Blu-ray, or 4K title is damaged, scratched, or missing its redemption code or Digital Copy disc, contact the vendor for help.
• If you still can't redeem the code or download your Digital Copy, contact Apple Support.