Primary Correspondence: For all inquiries regarding practice exam schedules, troubleshooting, forum access, or other technical issues, please send an email to All questions regarding billing and payment processing should be sent to We strive to respond to all requests within 24 hours.
Mailing Address: All mail correspondence, including payments via check or money order, should be sent to the below address.
Sentech Inc.
1133 Broadway
Suite 706
New York, NY 10010