diff --git a/white-box-pentest/billing.mdx b/white-box-pentest/billing.mdx
index b8adb4d..7702d73 100644
--- a/white-box-pentest/billing.mdx
+++ b/white-box-pentest/billing.mdx
@@ -30,6 +30,40 @@ needs enough credits for that estimate.
   </Step>
 </Steps>
 
+## Large estimates and scoping calls
+
+Estimates of up to 10,000 credits are self-service. Hacktron shows the credit
+total, and you can continue to checkout with **Next**.
+
+When an estimate is above 10,000 credits, Hacktron asks for a short scoping
+consultation before checkout:
+
+- The cost calculation step hides the credit total and per-repository credits.
+- **Next** is disabled, so you cannot start the scan from that estimate.
+- Hacktron follows up by email to confirm coverage, pricing, and timeline.
+- You can also book a scoping call. Organization owners with a work email can
+  open a shared Slack channel with Hacktron from **Settings**.
+
+The threshold compares the base scan credits. The optional or required triage
+fee is not counted toward the 10,000 credits. On-premises deployments do not
+use this gate.
+
+<Tip>
+  To stay within the self-service range, [narrow the included folders or path
+  patterns](/white-box-pentest/quickstart#path-patterns) and calculate the cost
+  again.
+</Tip>
+
+### Quote confirmation email
+
+After a hosted cost calculation completes with a credit cost, Hacktron emails
+the person who ran it. The subject is `Whitebox Pentest for <Organization>`.
+
+- For self-service estimates, the email states the quoted credits and their
+  USD value, with a link to book an optional scoping call.
+- For estimates above 10,000 credits, the email omits pricing and invites you
+  to reply or book a scoping call to confirm coverage, pricing, and timeline.
+
 ## Buy credits
 
 Organization owners can buy Whitebox Scan credits. If a member reaches checkout
diff --git a/white-box-pentest/quickstart.mdx b/white-box-pentest/quickstart.mdx
index 3690b04..fb670d4 100644
--- a/white-box-pentest/quickstart.mdx
+++ b/white-box-pentest/quickstart.mdx
@@ -111,6 +111,10 @@ On-premises deployments can select an enabled GitHub Enterprise Server repositor
     **Edit scope** to adjust the paths. Any scope change resets the estimate,
     so calculate again before starting.
 
+    If the estimate is above 10,000 credits, Hacktron hides the total, disables
+    **Next**, and follows up by email to scope the pentest with you. See
+    [Large estimates and scoping calls](/white-box-pentest/billing#large-estimates-and-scoping-calls).
+
     <img src="/images/whitebox_cost_estimate.png" width="2212" height="1256" alt="Run the credit cost estimate for the scan" />
 
   </Step>