diff --git a/app/celery/service_callback_tasks.py b/app/celery/service_callback_tasks.py
index 4dfe0c953..d1179ff17 100644
--- a/app/celery/service_callback_tasks.py
+++ b/app/celery/service_callback_tasks.py
@@ -39,7 +39,7 @@ def send_delivery_status_to_service(self, notification_id):
         "reference": str(notification.client_reference),
         "to": notification.to,
         "status": notification.status,
-        "created_at": notification.created_at.strftime(DATETIME_FORMAT),     # the time GOV.UK email sent the request
+        "created_at": notification.created_at.strftime(DATETIME_FORMAT),     # the time service sent the request
         "completed_at": notification.updated_at.strftime(DATETIME_FORMAT),   # the last time the status was updated
         "sent_at": notification.sent_at.strftime(DATETIME_FORMAT),           # the time the email was sent
         "notification_type": notification.notification_type
diff --git a/app/letters/utils.py b/app/letters/utils.py
index 56da5d221..176944667 100644
--- a/app/letters/utils.py
+++ b/app/letters/utils.py
@@ -46,5 +46,5 @@ def upload_letter_pdf(notification, pdf_data):
         tags={Retention.KEY: Retention.ONE_WEEK}
     )
 
-    current_app.logger.info("Uploaded letters PDF {} to {}".format(
-        upload_file_name, current_app.config['LETTERS_PDF_BUCKET_NAME']))
+    current_app.logger.info("Uploaded letters PDF {} to {} for notification id {}".format(
+        upload_file_name, current_app.config['LETTERS_PDF_BUCKET_NAME'], notification.id))