diff --git a/platformapi/tonglianpayapi/callback.go b/platformapi/tonglianpayapi/callback.go
index 3a436e9b..201eaf4e 100644
--- a/platformapi/tonglianpayapi/callback.go
+++ b/platformapi/tonglianpayapi/callback.go
@@ -1,9 +1,10 @@
 package tonglianpayapi
 
 import (
-	"encoding/json"
 	"io/ioutil"
 	"net/http"
+
+	"git.rosy.net.cn/baseapi/utils"
 )
 
 const (
@@ -43,9 +44,9 @@ type CallBackResult struct {
 
 func (a *API) GetCallbackMsg(request *http.Request) (call *CallBackResult, err error) {
 	data, err := ioutil.ReadAll(request.Body)
-	json.Unmarshal(data, &call)
 	if err != nil {
 		return nil, err
 	}
+	utils.UnmarshalUseNumber(data, &call)
 	return call, err
 }
diff --git a/platformapi/tonglianpayapi/tonglianpayapi.go b/platformapi/tonglianpayapi/tonglianpayapi.go
index fd26c851..6a63061d 100644
--- a/platformapi/tonglianpayapi/tonglianpayapi.go
+++ b/platformapi/tonglianpayapi/tonglianpayapi.go
@@ -75,22 +75,24 @@ type PayRefundParam struct {
 	Remark    string `json:"remark"`
 	RandomStr string `json:"randomStr"`
 	Sign      string `json:"sign"`
+	TrxID     string `json:"trxID"`
+	OldTrxID  string `json:"oldTrxID"`
 }
 
 type PayRefundResult struct {
-	RetCode   string `json:"retcode"`
-	RetMsg    string `json:"retmsg"`
-	CusID     string `json:"cusid"`
-	AppID     string `json:"appid"`
-	TrxID     string `json:"trxid"`
+	RetCode   string `json:"retCode"`
+	RetMsg    string `json:"retMsg"`
+	CusID     string `json:"cusID"`
+	AppID     string `json:"appID"`
+	TrxID     string `json:"trxID"`
 	Reqsn     string `json:"reqsn"`
-	TrxStatus string `json:"trxstatus"`
-	FinTime   string `json:"fintime"`
-	ErrMsg    string `json:"errmsg"`
-	RandomStr string `json:"randomstr"`
+	TrxStatus string `json:"trxStatus"`
+	FinTime   string `json:"finTime"`
+	ErrMsg    string `json:"errMsg"`
+	RandomStr string `json:"randomStr"`
 	Sign      string `json:"sign"`
-	Fee       int    `json:"fee"`
-	TrxCode   string `json:"trxcode"`
+	Fee       string `json:"fee"`
+	TrxCode   string `json:"trxCode"`
 }
 
 func New(appID, appKey, cusID, subAppid string, config ...*platformapi.APIConfig) *API {
@@ -183,8 +185,9 @@ func (a *API) PayRefund(param *PayRefundParam) (result *PayRefundResult, err err
 	params := make(map[string]interface{})
 	params["trxamt"] = param.Trxamt
 	params["reqsn"] = param.Reqsn
-	params["oldreqsn"] = param.OldReqsn
+	// params["oldreqsn"] = param.OldReqsn
 	params["remark"] = param.Remark
+	params["oldtrxid"] = param.OldTrxID
 	retVal, err := a.AccessAPI("unitorder/refund", params)
 	if err == nil {
 		utils.Map2StructByJson(retVal, &result, false)