The HDI Customer Care Center operates from HDI's headquarters in Colorado Springs. From taking orders to resolving customer concerns, our team is happy to assist you with any HDI-related matter. Contact us with questions about products, services, purchases, account histories, or anything else you may need.
[email protected]
800.248.5667 - United States
+1.719.268.0174 - Worldwide
Hours
Monday – Friday
9:00 a.m. – 6:00 p.m. ET
8:00 a.m. – 5:00 p.m. CT
7:00 a.m. – 4:00 p.m. MT
6:00 a.m. – 3:00 p.m. PT
Closures
Please note that HDI observes the following holidays:
- New Year's Day
- Martin Luther King Day
- President’s Day
- Memorial Day
- Independence Day
- Labor Day
- Thanksgiving Day
- Day after Thanksgiving
- Christmas Day
Online Learning Management System
Frequently Asked Questions