Contact_Us

Corporate Headquarters

10975 Grandview Dr., Suite 400
Overland Park, KS 66210
toll free: 888.827.2118
fax: 913.451.3285

Audit Customer Service

Phone: 800.443.6733
Email: OSI.CustomerSupport@exlservice.com

Survey/Castle High Value Customer Service:

Phone: 800.352.4767
Email: osiSurveyqc@exlservice.com

Technical questions

Please contact our IT Service Desk
Phone: 800.690.2182, option 1.
Email: osi.helpdesk@exlservice.com

Feedback

Phone: 800.572.2223
Email feedback@exlservice.com