After payment. What this site has, and what the store has to point at it.
The store sells an Agent Behaviour Policy at four levels. Since v1.19.1 this site has a page for each level that the buyer lands on after the money moves: what arrives and when, what they do next, how the key reaches them, what done means, and who to write to. Since v1.19.2 the £5 page is the download. Nothing on this site takes a payment; the store does. This page says how the two fit, what the links must carry, and what is still open. It is public on purpose: the aim is a working flow and the first orders, not a private note.