Billing documents

Form W-9.

Substradium Inc. is a Texas corporation. For vendor setup or case-cost accounting, the signed Form W-9 is available here and on request.

If the link does not open a PDF yet, the current signed copy is sent within one business day from stephen@substradium.com.

What invoices carry

Itemized line for the report tier, the carrier, the as-of date, and your matter reference.
Net-30 terms on invoiced orders; card or bank transfer from the invoice.
Substradium's legal name and address, and a link to these documents in the footer.