docs: Self review of doc pages

docs/hq/free-tier.md

@@ -4,7 +4,8 @@ title: Free tier
 sidebar_label: Free tier
 ---
 
-Free is a real tier in both deployments not a trial that turns into nothing.
+Free is a permanent tier. It is available whether we host Vantage for you or you
+host it yourself.
 
 ## What you get
 
@@ -23,16 +24,15 @@ features on a paid plan.
 ## One per account, per deployment
 
 The limit is enforced per account **and** deployment. A Free cloud instance does
-not prevent a Free self-hosted one they are separate slots.
+not prevent a Free self-hosted one; they are separate slots.
 
 ## Renewing
 
-Free licences have a term and must be renewed from the portal.
+Free licences run for a year and are renewed from the portal.
 
 - The renew button appears **7 days before expiry**.
-- It stays available **after** expiry, right up until the instance is reaped —
-  so the same button rescues a lapsed instance rather than needing a second
-  mechanism.
+- It stays available **after** expiry, right up until a lapsed cloud instance is
+  deleted, so the same button rescues one.
 - Renewing outside that window is refused, and the message names the date it
   opens.
 
@@ -55,19 +55,13 @@ There is no restore. If a cloud Free instance is approaching that date and you
 want to keep it, renew it, or move it to a paid plan.
 :::
 
-Deletion is carried out by the control plane rather than by HQ. HQ sends the
-warnings because it knows the billing address; the control plane performs the
-delete because it is the only service that knows which collections carry the
-instance ID.
-
 ## Moving off Free
 
 Change the instance's configuration to a paid tier and check out. Your data
-stays where it is a tier change reissues a licence, it does not rebuild
+stays where it is: a tier change reissues a licence, it does not rebuild
 anything.
 
 ## Relinks
 
-Free instances get the same relink allowance as paid ones: three per term. That
-cap exists to put a human in front of a fourth attempt, not to obstruct a
-genuine rebuild.
+Free instances get the same allowance as paid ones: three relinks per term. If
+you genuinely need more, ask support.