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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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