diff --git a/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatPayCallbackService.java b/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatPayCallbackService.java
index 1c2e7397..72aadc4b 100644
--- a/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatPayCallbackService.java
+++ b/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatPayCallbackService.java
@@ -73,7 +73,7 @@ public class WechatPayCallbackService {
         callbackInfo.setCallbackType(TradeTypeEnum.PAY)
                 .setChannel(isv? ChannelEnum.WECHAT_ISV.getCode():ChannelEnum.WECHAT.getCode());
 
-        WechatPayConfig config = wechatPayConfigService.getAndCheckConfig(false);
+        WechatPayConfig config = wechatPayConfigService.getAndCheckConfig(isv);
         WxPayService wxPayService = wechatPayConfigService.wxJavaSdk(config);
         // v2 或 v3
         if (Objects.equals(config.getApiVersion(), WechatPayCode.API_V2)) {
diff --git a/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatRefundCallbackService.java b/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatRefundCallbackService.java
index 8462d895..0044f048 100644
--- a/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatRefundCallbackService.java
+++ b/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatRefundCallbackService.java
@@ -75,7 +75,7 @@ public class WechatRefundCallbackService {
         callbackInfo.setCallbackType(TradeTypeEnum.REFUND)
                 .setChannel(isv? ChannelEnum.WECHAT_ISV.getCode():ChannelEnum.WECHAT.getCode());
 
-        WechatPayConfig config = wechatPayConfigService.getAndCheckConfig(false);
+        WechatPayConfig config = wechatPayConfigService.getAndCheckConfig(isv);
         WxPayService wxPayService = wechatPayConfigService.wxJavaSdk(config);
         // v2 或 v3
         if (Objects.equals(config.getApiVersion(), WechatPayCode.API_V2)) {
diff --git a/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatTransferCallbackService.java b/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatTransferCallbackService.java
index a705d48c..d28521a5 100644
--- a/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatTransferCallbackService.java
+++ b/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/callback/WechatTransferCallbackService.java
@@ -66,7 +66,7 @@ public class WechatTransferCallbackService {
         CallbackLocal callbackInfo = PaymentContextLocal.get().getCallbackInfo();
         callbackInfo.setChannel(isv? ChannelEnum.WECHAT_ISV.getCode():ChannelEnum.WECHAT.getCode())
                 .setCallbackType(TradeTypeEnum.TRANSFER);
-        WechatPayConfig config = wechatPayConfigService.getAndCheckConfig(false);
+        WechatPayConfig config = wechatPayConfigService.getAndCheckConfig(isv);
         WxPayService wxPayService = wechatPayConfigService.wxJavaSdk(config);
         // V3 回调接收处理
         String body = JakartaServletUtil.getBody(request);
diff --git a/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/refund/WechatSubRefundV3Service.java b/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/refund/WechatSubRefundV3Service.java
index 127ff4ec..9d8fc1f4 100644
--- a/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/refund/WechatSubRefundV3Service.java
+++ b/daxpay-open-channel/daxpay-open-channel-wechat/src/main/java/org/dromara/daxpay/channel/wechat/service/payment/refund/WechatSubRefundV3Service.java
@@ -1,5 +1,6 @@
 package org.dromara.daxpay.channel.wechat.service.payment.refund;
 
+import cn.hutool.core.util.StrUtil;
 import org.dromara.daxpay.channel.wechat.entity.config.WechatPayConfig;
 import org.dromara.daxpay.channel.wechat.enums.WechatRefundStatusEnum;
 import org.dromara.daxpay.channel.wechat.service.payment.config.WechatPayConfigService;
@@ -48,6 +49,9 @@ public class WechatSubRefundV3Service {
                 .setOutTradeNo(refundOrder.getOrderNo())
                 .setAmount(amount)
                 .setSubMchid(config.getSubMchId());
+        if (StrUtil.isBlank(request.getReason())){
+            request.setReason("退款");
+        }
         try {
             WxPayRefundV3Result result = wxPayService.refundV3(request);