diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/GetMerchantServiceComplaintByComplaintIdResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/GetMerchantServiceComplaintByComplaintIdResponse.cs
index 3bb1f1e8..9a64404e 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/GetMerchantServiceComplaintByComplaintIdResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/GetMerchantServiceComplaintByComplaintIdResponse.cs
@@ -33,6 +33,23 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
                 [System.Text.Json.Serialization.JsonPropertyName("amount")]
                 public int Amount { get; set; }
             }
+
+            public class ComplaintMedia
+            {
+                /// <summary>
+                /// 获取或设置媒体文件业务类型。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("media_type")]
+                [System.Text.Json.Serialization.JsonPropertyName("media_type")]
+                public string MediaType { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置媒体文件 URL 列表。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("media_url")]
+                [System.Text.Json.Serialization.JsonPropertyName("media_url")]
+                public string[] MediaUrl { get; set; } = default!;
+            }
         }
 
         /// <summary>
@@ -91,7 +108,21 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         /// </summary>
         [Newtonsoft.Json.JsonProperty("complaint_order_info")]
         [System.Text.Json.Serialization.JsonPropertyName("complaint_order_info")]
-        public Types.ComplaintOrder[]? ComplaintOrderList { get; set; }
+        public Types.ComplaintOrder[] ComplaintOrderList { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置投诉资料列表。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("complaint_media_list")]
+        [System.Text.Json.Serialization.JsonPropertyName("complaint_media_list")]
+        public Types.ComplaintMedia[] ComplaintMediaList { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置问题描述。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("problem_description")]
+        [System.Text.Json.Serialization.JsonPropertyName("problem_description")]
+        public string ProblemDescription { get; set; } = default!;
 
         /// <summary>
         /// 获取或设置投诉单是否已全额退款。
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/QueryMerchantServiceComplaintNegotiationHistoriesResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/QueryMerchantServiceComplaintNegotiationHistoriesResponse.cs
index 611f63a1..4587a991 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/QueryMerchantServiceComplaintNegotiationHistoriesResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/QueryMerchantServiceComplaintNegotiationHistoriesResponse.cs
@@ -12,6 +12,13 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
         {
             public class NegotiationHistory
             {
+                public static class Types
+                {
+                    public class ComplaintMedia : GetMerchantServiceComplaintByComplaintIdResponse.Types.ComplaintMedia
+                    { 
+                    }
+                }
+
                 /// <summary>
                 /// 获取或设置操作流水号。
                 /// </summary>
@@ -55,6 +62,13 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
                 [Newtonsoft.Json.JsonProperty("image_list")]
                 [System.Text.Json.Serialization.JsonPropertyName("image_list")]
                 public string[]? ImageUrlList { get; set; }
+
+                /// <summary>
+                /// 获取或设置投诉资料列表。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("complaint_media_list")]
+                [System.Text.Json.Serialization.JsonPropertyName("complaint_media_list")]
+                public Types.ComplaintMedia[]? ComplaintMediaList { get; set; }
             }
         }
 
diff --git a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/QueryMerchantServiceComplaintsResponse.cs b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/QueryMerchantServiceComplaintsResponse.cs
index e82c1327..8282dce3 100644
--- a/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/QueryMerchantServiceComplaintsResponse.cs
+++ b/src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/MerchantService/ComplaintsV2/QueryMerchantServiceComplaintsResponse.cs
@@ -14,28 +14,12 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
             {
                 public static class Types
                 {
-                    public class ComplaintOrder
+                    public class ComplaintOrder : GetMerchantServiceComplaintByComplaintIdResponse.Types.ComplaintOrder
                     {
-                        /// <summary>
-                        /// 获取或设置微信订单号。
-                        /// </summary>
-                        [Newtonsoft.Json.JsonProperty("transaction_id")]
-                        [System.Text.Json.Serialization.JsonPropertyName("transaction_id")]
-                        public string TransactionId { get; set; } = default!;
+                    }
 
-                        /// <summary>
-                        /// 获取或设置商户订单号。
-                        /// </summary>
-                        [Newtonsoft.Json.JsonProperty("out_trade_no")]
-                        [System.Text.Json.Serialization.JsonPropertyName("out_trade_no")]
-                        public string OutTradeNumber { get; set; } = default!;
-
-                        /// <summary>
-                        /// 获取或设置订单金额（单位：分）。
-                        /// </summary>
-                        [Newtonsoft.Json.JsonProperty("amount")]
-                        [System.Text.Json.Serialization.JsonPropertyName("amount")]
-                        public int Amount { get; set; }
+                    public class ComplaintMedia : GetMerchantServiceComplaintByComplaintIdResponse.Types.ComplaintMedia
+                    {
                     }
                 }
 
@@ -88,7 +72,21 @@ namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
                 /// </summary>
                 [Newtonsoft.Json.JsonProperty("complaint_order_info")]
                 [System.Text.Json.Serialization.JsonPropertyName("complaint_order_info")]
-                public Types.ComplaintOrder[]? ComplaintOrderList { get; set; }
+                public Types.ComplaintOrder[] ComplaintOrderList { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置投诉资料列表。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("complaint_media_list")]
+                [System.Text.Json.Serialization.JsonPropertyName("complaint_media_list")]
+                public Types.ComplaintMedia[] ComplaintMediaList { get; set; } = default!;
+
+                /// <summary>
+                /// 获取或设置问题描述。
+                /// </summary>
+                [Newtonsoft.Json.JsonProperty("problem_description")]
+                [System.Text.Json.Serialization.JsonPropertyName("problem_description")]
+                public string ProblemDescription { get; set; } = default!;
 
                 /// <summary>
                 /// 获取或设置投诉单是否已全额退款。