diff --git a/app/lib/actions/billActions.ts b/app/lib/actions/billActions.ts
index f92d71a..c5b09fa 100644
--- a/app/lib/actions/billActions.ts
+++ b/app/lib/actions/billActions.ts
@@ -511,10 +511,9 @@ export const uploadProofOfPayment = async (locationID: string, billID: string, f
         const dbClient = await getDbClient();
 
         const projection = {
+            // attachment is not required in this context - this will reduce data transfer
             "bills.attachment": 0,
-            // don't include the attachment - save the bandwidth it's not needed here
-            "bills.proofOfPayment.uploadedAt": 1,
-            // ommit only the file contents - we need to know if a file was already uploaded
+            // ommit file content - not needed here - this will reduce data transfer
             "bills.proofOfPayment.fileContentsBase64": 0,
         };