diff --git a/ios/Classes/SwiftPokepaySdkPlugin.swift b/ios/Classes/SwiftPokepaySdkPlugin.swift
index 39b74bc..9a1801d 100644
--- a/ios/Classes/SwiftPokepaySdkPlugin.swift
+++ b/ios/Classes/SwiftPokepaySdkPlugin.swift
@@ -506,7 +506,8 @@ class MethodCallTask {
             let accountId = args["accountId"] as! String
             let couponId = args["couponId"] as! String
             let isReceived = args["is_received"] as! Bool
-            client.send(BankAPI.Account.PatchCouponDetail(accountId: accountId, couponId: couponId,isReceived: isReceived),handler: self.after)
+            let code = args["code"] as? String
+            client.send(BankAPI.Account.PatchCouponDetail(accountId: accountId, couponId: couponId,isReceived: isReceived, code: code),handler: self.after)
         case "receiveMessageAttachment":
             let env = flutterEnvToSDKEnv(ienv: args["env"] as! Int32)
             let accessToken = args["accessToken"] as! String
diff --git a/lib/bank_api/account.dart b/lib/bank_api/account.dart
index acbafc3..7d1ef76 100644
--- a/lib/bank_api/account.dart
+++ b/lib/bank_api/account.dart
@@ -151,6 +151,7 @@ extension AccountAPI on PokepayAPI {
     required String accountId,
     required String couponId,
     required bool isReceived,
+    String? code,
   }) async {
     return await invokeMethod<CouponDetail>(
       (j) => CouponDetail.fromJson(j),
@@ -161,6 +162,7 @@ extension AccountAPI on PokepayAPI {
         'accountId': accountId,
         'couponId': couponId,
         'is_received': isReceived,
+        'code': code,
       },
     );
   }
diff --git a/lib/responses/bankpay_redirect_url.dart b/lib/responses/bankpay_redirect_url.dart
index 0d73513..0647136 100644
--- a/lib/responses/bankpay_redirect_url.dart
+++ b/lib/responses/bankpay_redirect_url.dart
@@ -4,7 +4,11 @@ part 'bankpay_redirect_url.g.dart';
 
 @JsonSerializable()
 class BankPayRedirectUrl {
+  // このエンドポイントのレスポンスキーは snake_case ではなく camelCase のため、
+  // field_rename: snake を @JsonKey で打ち消す。
+  @JsonKey(name: 'redirectUrl')
   final String redirectUrl;
+  @JsonKey(name: 'paytreeCustomerNumber')
   final String? paytreeCustomerNumber;
 
   BankPayRedirectUrl({
diff --git a/lib/responses/bankpay_redirect_url.g.dart b/lib/responses/bankpay_redirect_url.g.dart
index 06f3857..0a2d19f 100644
--- a/lib/responses/bankpay_redirect_url.g.dart
+++ b/lib/responses/bankpay_redirect_url.g.dart
@@ -8,12 +8,12 @@ part of 'bankpay_redirect_url.dart';
 
 BankPayRedirectUrl _$BankPayRedirectUrlFromJson(Map<String, dynamic> json) =>
     BankPayRedirectUrl(
-      redirectUrl: json['redirect_url'] as String,
-      paytreeCustomerNumber: json['paytree_customer_number'] as String?,
+      redirectUrl: json['redirectUrl'] as String,
+      paytreeCustomerNumber: json['paytreeCustomerNumber'] as String?,
     );
 
 Map<String, dynamic> _$BankPayRedirectUrlToJson(BankPayRedirectUrl instance) =>
     <String, dynamic>{
-      'redirect_url': instance.redirectUrl,
-      'paytree_customer_number': instance.paytreeCustomerNumber,
+      'redirectUrl': instance.redirectUrl,
+      'paytreeCustomerNumber': instance.paytreeCustomerNumber,
     };
diff --git a/lib/responses/cvs_authorization.dart b/lib/responses/cvs_authorization.dart
index 0d4fd65..84ce0d8 100644
--- a/lib/responses/cvs_authorization.dart
+++ b/lib/responses/cvs_authorization.dart
@@ -13,6 +13,13 @@ class CvsAuthorization {
   final String tel;
   final String payLimit;
   final Account account;
+  // コンビニ払込票の URL・受付番号と、完了/取消時刻。
+  // done_at / canceled_at はネイティブ SDK (Java String / Swift String?) が
+  // サーバの RFC3339 文字列をそのまま素通しするため、payLimit と同じく String で受ける。
+  final String? haraikomiUrl;
+  final String? receiptNo;
+  final String? doneAt;
+  final String? canceledAt;
 
   CvsAuthorization({
     required this.id,
@@ -23,6 +30,10 @@ class CvsAuthorization {
     required this.tel,
     required this.payLimit,
     required this.account,
+    this.haraikomiUrl,
+    this.receiptNo,
+    this.doneAt,
+    this.canceledAt,
   });
 
   factory CvsAuthorization.fromJson(Map<String, dynamic> json) =>
diff --git a/lib/responses/cvs_authorization.g.dart b/lib/responses/cvs_authorization.g.dart
index c6b2492..d6ded0d 100644
--- a/lib/responses/cvs_authorization.g.dart
+++ b/lib/responses/cvs_authorization.g.dart
@@ -16,6 +16,10 @@ CvsAuthorization _$CvsAuthorizationFromJson(Map<String, dynamic> json) =>
       tel: json['tel'] as String,
       payLimit: json['pay_limit'] as String,
       account: Account.fromJson(json['account'] as Map<String, dynamic>),
+      haraikomiUrl: json['haraikomi_url'] as String?,
+      receiptNo: json['receipt_no'] as String?,
+      doneAt: json['done_at'] as String?,
+      canceledAt: json['canceled_at'] as String?,
     );
 
 Map<String, dynamic> _$CvsAuthorizationToJson(CvsAuthorization instance) =>
@@ -28,4 +32,8 @@ Map<String, dynamic> _$CvsAuthorizationToJson(CvsAuthorization instance) =>
       'tel': instance.tel,
       'pay_limit': instance.payLimit,
       'account': instance.account,
+      'haraikomi_url': instance.haraikomiUrl,
+      'receipt_no': instance.receiptNo,
+      'done_at': instance.doneAt,
+      'canceled_at': instance.canceledAt,
     };
diff --git a/lib/responses/private_money.dart b/lib/responses/private_money.dart
index e7cd273..869938e 100644
--- a/lib/responses/private_money.dart
+++ b/lib/responses/private_money.dart
@@ -13,6 +13,9 @@ class PrivateMoney {
   final String type;
   final String unit;
   final String description;
+  // フィールド名は oneline (一行) の typo だが、公開 API 互換のため改名せず
+  // JSON キーだけ明示する。field_rename: snake では online_message になってしまう。
+  @JsonKey(name: 'oneline_message')
   final String onlineMessage;
   final String? accountImage;
   final Images images;
@@ -26,6 +29,8 @@ class PrivateMoney {
   final String? paymentActUrl;
   final String? commercialActUrl;
   final bool canUseCreditCard;
+  // field_rename: snake は大文字1文字ごとに _ を挟むため C2C が c2_c になる。
+  @JsonKey(name: 'can_use_c2c_transfer')
   final bool canUseC2CTransfer;
   final String? customDomainName;
   final List<TopupMethod>? topupMethods;
diff --git a/lib/responses/private_money.g.dart b/lib/responses/private_money.g.dart
index 8c1693b..de9afaf 100644
--- a/lib/responses/private_money.g.dart
+++ b/lib/responses/private_money.g.dart
@@ -12,7 +12,7 @@ PrivateMoney _$PrivateMoneyFromJson(Map<String, dynamic> json) => PrivateMoney(
       type: json['type'] as String,
       unit: json['unit'] as String,
       description: json['description'] as String,
-      onlineMessage: json['online_message'] as String,
+      onlineMessage: json['oneline_message'] as String,
       accountImage: json['account_image'] as String?,
       images: Images.fromJson(json['images'] as Map<String, dynamic>),
       organization:
@@ -26,7 +26,7 @@ PrivateMoney _$PrivateMoneyFromJson(Map<String, dynamic> json) => PrivateMoney(
       paymentActUrl: json['payment_act_url'] as String?,
       commercialActUrl: json['commercial_act_url'] as String?,
       canUseCreditCard: json['can_use_credit_card'] as bool,
-      canUseC2CTransfer: json['can_use_c2_c_transfer'] as bool,
+      canUseC2CTransfer: json['can_use_c2c_transfer'] as bool,
       customDomainName: json['custom_domain_name'] as String?,
       topupMethods: (json['topup_methods'] as List<dynamic>?)
           ?.map((e) => TopupMethod.fromJson(e as Map<String, dynamic>))
@@ -40,7 +40,7 @@ Map<String, dynamic> _$PrivateMoneyToJson(PrivateMoney instance) =>
       'type': instance.type,
       'unit': instance.unit,
       'description': instance.description,
-      'online_message': instance.onlineMessage,
+      'oneline_message': instance.onlineMessage,
       'account_image': instance.accountImage,
       'images': instance.images,
       'organization': instance.organization,
@@ -53,7 +53,7 @@ Map<String, dynamic> _$PrivateMoneyToJson(PrivateMoney instance) =>
       'payment_act_url': instance.paymentActUrl,
       'commercial_act_url': instance.commercialActUrl,
       'can_use_credit_card': instance.canUseCreditCard,
-      'can_use_c2_c_transfer': instance.canUseC2CTransfer,
+      'can_use_c2c_transfer': instance.canUseC2CTransfer,
       'custom_domain_name': instance.customDomainName,
       'topup_methods': instance.topupMethods,
     };