diff --git a/partner-trustlink.js b/partner-trustlink.js
index 75eb3a0..7e15cf2 100644
--- a/partner-trustlink.js
+++ b/partner-trustlink.js
@@ -161,4 +161,5 @@ function directResponseHandler(body, task) {
     });
 }
 
-export.start = start;
+exports.start = start;
+exports.topupRequest = topupRequest;