Https://www.higheredimmigrationportal.org/wp-content/uploads/formidable/25/complete-list-of-copyright-customer-service-us-based-contact-numbers-a-step-by-step-guide.pdf https://www.higheredimmigrationportal.org/wp-content/uploads/formidable/25/complete-list-of-copyright-customer-service-us-based-contact-numbers-a-step-by-step-guide.pdf