diff --git a/backend/address2UPRN/main.py b/backend/address2UPRN/main.py
index a067593e..af29a095 100644
--- a/backend/address2UPRN/main.py
+++ b/backend/address2UPRN/main.py
@@ -492,8 +492,6 @@ def save_results_to_s3(
     """
     if bucket_name is None:
         bucket_name = os.getenv("S3_BUCKET_NAME")
-        if bucket_name is None:
-            bucket_name = "retrofit-data-dev"
 
     if not bucket_name:
         logger.error(
diff --git a/backend/postcode_splitter/main.py b/backend/postcode_splitter/main.py
index 6cc40fc4..70ecf5f1 100644
--- a/backend/postcode_splitter/main.py
+++ b/backend/postcode_splitter/main.py
@@ -23,15 +23,6 @@ def upload_batch_to_s3(
 ) -> str:
     """
     Upload batch DataFrame to S3 as CSV.
-
-    Args:
-        batch_df: The DataFrame containing batch data
-        task_id: The parent task ID (used for file path)
-        sub_task_id: The subtask ID (used for file path)
-        bucket_name: The S3 bucket name (defaults to env variable)
-
-    Returns:
-        S3 URI (s3://bucket/key) of the uploaded file
     """
     if bucket_name is None:
         bucket_name = os.getenv("S3_BUCKET_NAME")