Customer Care
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Response Time
Within one business day, Monday–Friday.
Editorial Inquiries
Press, partnerships, and licensing welcome.
Frequently Asked
Before you write.
How fast will I hear back?+
Within one business day, Monday–Friday. Most messages are answered same-day.
I need help with my Matrix+ subscription+
Visit Matrix HQ → Account to manage your membership, view invoices, or update your payment method. For anything else, email us directly.
I purchased an ebook but can't download it+
Your ebooks live in Matrix HQ → My Library. If it's not showing, forward your order confirmation email and we'll re-issue access instantly.
Do you offer refunds?+
Research Editions are instant digital downloads and all sales are final, with a few sensible exceptions. See our Refund Policy for details.
Do you offer partnerships or licensing?+
Yes — send a note with your organization and idea, and our editorial team will reply.