Contact Us for Admins and Instructors

Customer Service

Technical Support
For questions or assistance with orders and billing, please contact Customer Service.
For questions or assistance with using your digital product, please contact Technical support.
Phone: 800.221.5175
Email: customerservice@christinus.com 

Hours of Operation: 9:00 AM - 6:00 PM EST (Monday - Friday) 		Phone: 800.264.8060
Email: support@christinus.com

Hours of Operation: 9:00 AM - 8:00 PM EST
(Monday - Friday)

Mailing Address:

William H. Sadlier, Inc. 
Attention: Customer Service 
25 Broadway, 14th Floor 
New York, NY 10004-1010

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