diff --git a/app/PaymentDrivers/BaseDriver.php b/app/PaymentDrivers/BaseDriver.php
index 96352f0c3d50..a78ba36420e9 100644
--- a/app/PaymentDrivers/BaseDriver.php
+++ b/app/PaymentDrivers/BaseDriver.php
@@ -244,6 +244,9 @@ class BaseDriver extends AbstractPaymentDriver
         if (property_exists($this->payment_hash->data, 'billing_context')) {
             $billing_subscription = \App\Models\Subscription::find($this->payment_hash->data->billing_context->subscription_id);
 
+            // To access campaign hash => $this->payment_hash->data->billing_context->campaign;
+            // To access utm data => session()->get('utm-' . CAMPAIGN_HASH);
+
             (new SubscriptionService($billing_subscription))->completePurchase($this->payment_hash);
         }