diff --git a/lib/partner.js b/lib/partner.js
index 2a0ad0d..ebfd01d 100644
--- a/lib/partner.js
+++ b/lib/partner.js
@@ -101,6 +101,7 @@ function _topUpRequest(task, isAdvice) {
             message: stringify(value),
             sn: (value.SN || '').replace(/;$/, '') || st24.extractSnFromMessage(value.MESSAGE, config.sn_pattern),
             amount: value.PRICE || st24.extractPriceFromMsg(value.MESSAGE, config.amount_pattern),
+            balance: st24.extractBalanceFromMsg(value.MESSAGE, config.balance_pattern),
             raw: value,
             misc: {
                 task: task