diff --git a/requestcheckout.php b/requestcheckout.php
index 3d3d04d..2249005 100644
--- a/requestcheckout.php
+++ b/requestcheckout.php
@@ -31,7 +31,7 @@
-$body = ''.$PAYBILL_NO.'ZTcxY2M3M2U1ZDM1ZGEyZTRiN2UyNGUyNDk0NGQwOTVkMzgzOTNmN2UzOTEzN2RlNDE1N2M0ZjViNDIzMWU0Yw==20160426121448'.$MERCHANT_TRANSACTION_ID.''.$PRODUCT_ID.''.$AMOUNT.''.$NUMBER.''.$CALLBACK_URL.''.$CALL_BACK_METHOD.'20160426121448'; /// Your SOAP XML needs to be in this variable
+$body = ''.$PAYBILL_NO.'ZTcxY2M3M2U1ZDM1ZGEyZTRiN2UyNGUyNDk0NGQwOTVkMzgzOTNmN2UzOTEzN2RlNDE1N2M0ZjViNDIzMWU0Yw=='.$TIMESTAMP.''.$MERCHANT_TRANSACTION_ID.''.$PRODUCT_ID.''.$AMOUNT.''.$NUMBER.''.$CALLBACK_URL.''.$CALL_BACK_METHOD.''.$TIMESTAMP.''; /// Your SOAP XML needs to be in this variable
try{