[Improvement]: Clarification on billing in Copilot Code Review Docs (#60185)

Co-authored-by: John Clement <70238417+jclement136@users.noreply.github.com>

Author: sophietheking

content/copilot/concepts/agents/code-review.md

@@ -109,7 +109,7 @@ Organizations in this situation can use self-hosted runners. For more informatio
 
 Each time {% data variables.product.prodname_copilot_short %} reviews a pull request or reviews code in your IDE, your monthly quota of {% data variables.product.prodname_copilot_short %} premium requests is reduced by one.
 
-If a repository is configured to automatically request a code review from {% data variables.product.prodname_copilot_short %} for all new pull requests, the premium request usage is applied to the pull request author's quota.
+If a repository is configured to automatically request a code review from {% data variables.product.prodname_copilot_short %} for all new pull requests, the premium request usage is applied to the pull request author's quota. If a review is manually requested by another user, the usage is applied to that user's quota instead.
 
 If a pull request is created by {% data variables.product.prodname_actions %} or by a bot, the usage will apply to:
 
@@ -120,11 +120,13 @@ If a pull request is created by {% data variables.product.prodname_actions %} or
 
 When you reach your monthly quota, you will not be able to get a code review from {% data variables.product.prodname_copilot_short %} until your quota resets. To continue to use code reviews before your quota resets, you will need to upgrade your {% data variables.product.prodname_copilot_short %} plan or enable additional premium requests.
 
-### Quota for users without a {% data variables.product.prodname_copilot_short %} license
+### Users without a {% data variables.product.prodname_copilot_short %} license or plan that includes {% data variables.copilot.copilot_code-review_short %}
 
-Users without a {% data variables.product.prodname_copilot_short %} license do not have a monthly premium request quota. When {% data variables.copilot.copilot_code-review_short %} is enabled for these users, any premium requests they generate are billed directly to the organization or enterprise as paid overage usage. This applies to both manually requested reviews and automatic code reviews.
+Users without access to {% data variables.copilot.copilot_code-review_short %} do not have a monthly premium request quota. This includes users who have no {% data variables.product.prodname_copilot_short %} license and users on the {% data variables.copilot.copilot_free_short %} plan, which does not include {% data variables.copilot.copilot_code-review_short %}.
 
-Premium requests generated by users without a license are not attributed to any {% data variables.product.prodname_copilot_short %} plan quota. They appear as overage usage in billing reports and premium request analytics. Users with a {% data variables.product.prodname_copilot_short %} license continue to consume premium requests from their assigned plan quota.
+When {% data variables.copilot.copilot_code-review_short %} is enabled for these users, any premium requests they generate are billed directly to the organization or enterprise as paid overage usage. This applies to both manually requested reviews and automatic code reviews.
+
+Premium requests generated by these users are not attributed to any {% data variables.product.prodname_copilot_short %} plan quota. They appear as overage usage in billing reports and premium request analytics. Users with a {% data variables.product.prodname_copilot_short %} license that includes code review continue to consume premium requests from their assigned plan quota.
 
 ## Model usage