Contact GC Prep
We reply within 48 hours on business days. Quick answers to most common questions live in Help & FAQ.
Before emailing — try these first
Help & FAQ covers accounts, payments, refunds, certificates, privacy, the Android
app, and more. Most questions are answered there in 30 seconds.
Reach us
General support
Account issues, missing access after purchase, refund requests, study-content questions, certificate issues, bug reports.
Privacy & data requests
Data export (DSAR), account deletion follow-ups, GDPR/CCPA inquiries, and other privacy-policy questions. Account deletion can also be self-served via /profile → Account.
Business & press
Formal business matters, partnership inquiries, press, federal contracting (CAGE 7BAJ0, UEI ZERAMJ6UEML9), and B2B seat licensing. A dedicated GC Prep phone line is coming soon.
MasonByte LLC
GC Prep is operated by MasonByte LLC, an SDVOSB based in Accokeek, Maryland.
CAGE 7BAJ0 · UEI ZERAMJ6UEML9 · SDVOSB ·
masonbyte.com