diff --git a/webapp/controller/UserController.class.php b/webapp/controller/UserController.class.php
index a0f03a83..c70ae526 100644
--- a/webapp/controller/UserController.class.php
+++ b/webapp/controller/UserController.class.php
@@ -931,25 +931,25 @@ class UserController extends BaseAuthedController {
             return;
         }
         $rspObj = json_decode($response, true);
-        if (empty($rspObj['data']['address'])) {
+        if ($rspObj['errcode'] != 0) {
+            myself()->_rspErr(500,  'server internal error');
+            return;
+        }
+        if ($rspObj['account_id'] != myself()->_getAccountId()) {
+            myself()->_rspErr(500,  'server internal error');
+            return;
+        }
+        if (empty($rspObj['address'])) {
             User::Update(array(
                 'address' => null
             ));
             myself()->_rspOk();
-            die();
             return;
         }
-        $address = strtolower($rspObj['data']['address']);
+        $address = strtolower($rspObj['address']);
         $oldUser = User::findByAddress($address);
         if ($oldUser) {
             if ($oldUser['account_id'] != myself()->_getAccountId()) {
-                if (!phpcommon\isSameSeriesAccount(
-                    $oldUser['account_id'],
-                    myself()->_getAccountId()
-                )) {
-                    myself()->_rspErr(1, 'is not SameSeriesAccount');
-                    return;
-                }
                 User::updateOther(
                     $oldUser['account_id'],
                     array(