Payment issues
If checkout fails or appears incomplete, retry the transaction carefully and keep any Stripe reference available for support follow-up.
Help
Support and delivery help
Use this page for payment issues, gated download questions, licensing queries, invoice requests, and other support routes.
Download issues
If payment succeeds but the gated download is unavailable, contact support with the purchase email and session reference.
Invoice requests
Invoice-related questions can be sent through the contact route with the relevant transaction details.
Licensing queries
For team-wide circulation, internal portal use, or broader distribution rights, ask about enterprise licensing before reuse.
Delivery questions
Delivery is digital. Public visitors can review summaries and preview figures, while full PDFs remain behind the paywall.
Contact routes
Use the contact page for report questions, consulting scoping, enterprise licensing, collaborations, or general inquiries.