You can pull any invoice yourself, without asking us. They sit under Billing history, at the bottom of Settings → Plan & billing, and the list holds your last 24. A paid one has a Download link for the PDF. An unpaid one has Pay invoice instead.
We also email a receipt after every successful charge, plan renewals and usage packs alike, including packs bought without a plan. It goes to the workspace owner, so if that isn't you, that's who has the copy in their inbox.
If your accounts team needs a company name or address on the invoice, open Manage subscription on the same page, or Update next to Payment method if you don't have a plan, and update your billing details in the billing portal. Future invoices pick them up. Ones already issued stay as they are.
For a change to an invoice that's already been issued, email [email protected] and a human will read it.