diff --git a/lib/partner.js b/lib/partner.js
index 39a1748..35836bf 100644
--- a/lib/partner.js
+++ b/lib/partner.js
@@ -80,7 +80,7 @@ function buy(task) {
             trx_id: task.trx_id,
             rc: partnerRc[value.RESPONSECODE] || '40',
             message: value.MESSAGE,
-            sn: value.SN || st24.extractSnFromMessage(value.MESSAGE),
+            sn: (value.SN || '').replace(/;$/, '') || st24.extractSnFromMessage(value.MESSAGE),
             amount: value.PRICE || st24.extractPriceFromMsg(value.MESSAGE),
             raw: value,
             misc: {
diff --git a/lib/reverse-report.js b/lib/reverse-report.js
index 3101899..9719525 100644
--- a/lib/reverse-report.js
+++ b/lib/reverse-report.js
@@ -35,7 +35,7 @@ function create() {
                 trx_id: value.REQUESTID,
                 rc: partnerRc[value.RESPONSECODE] || '40',
                 message: value.MESSAGE,
-                sn: value.SN || st24.extractSnFromMessage(value.MESSAGE),
+                sn: (value.SN || '').replace(/;$/, '') || st24.extractSnFromMessage(value.MESSAGE),
                 amount: value.PRICE || st24.extractPriceFromMsg(value.MESSAGE),
                 raw: value,
                 misc: {