fix

src/main/java/au/com/royalpay/payment/manage/merchants/core/impls/ClientManagerImpl.java

@@ -3808,7 +3808,7 @@ public class ClientManagerImpl implements ClientManager, ManagerTodoNoticeProvid
             if (StringUtils.isBlank(representative_id.getString("representative_id"))) {
                 throw new BadRequestException("ID or passport number can't be null");
             }
-            client.put("representative_id", representative_id);
+            client.put("representative_id", representative_id.getString("representative_id"));
         }
 
         AlipayConfig.AlipayMerchant mch = AlipayEnvironment.getEnv().getAlipayRetailMerchant();
@@ -3861,7 +3861,7 @@ public class ClientManagerImpl implements ClientManager, ManagerTodoNoticeProvid
         if (StringUtils.isBlank(representative_id.getString("representative_id"))) {
             throw new BadRequestException("ID or passport number can't be null");
         }
-        client.put("representative_id", representative_id);
+        client.put("representative_id", representative_id.getString("representative_id"));
 
         AlipayConfig.AlipayMerchant mch = AlipayEnvironment.getEnv().getAlipayOnlineMerchant();
         Element resultElement = alipayClient.registerOnlineGmsPortal(mch.getPid(), client);