diff --git a/internal/infrastructure/audit/registry.go b/internal/infrastructure/audit/registry.go
index 171d144f..e6e8dc97 100644
--- a/internal/infrastructure/audit/registry.go
+++ b/internal/infrastructure/audit/registry.go
@@ -98,7 +98,12 @@ func NewRegistry() *Registry {
 		{Actor: constants.AuditActorPersonalCustomer, Source: constants.AuditSourcePersonalAPI},
 		{Actor: constants.AuditActorExternalSystem, Source: constants.AuditSourceCallback},
 	}
+	// 轮询开关可由后台人工、文件导入 Worker、订单套餐生效（C 端、开放接口、支付回调）与改有效期触发，均需留下审计事实。
+	iotCardPollingStatusUpdated.AllowedActor, iotCardPollingStatusUpdated.Source = "", ""
+	iotCardPollingStatusUpdated.AllowedOrigins = pollingToggleOrigins()
 	iotCardPollingStatusBatchUpdated := iotCardBatchAction(constants.AuditActionIotCardPollingStatusBatchUpdated, "批量更新 IoT 卡轮询开关")
+	iotCardPollingStatusBatchUpdated.AllowedActor, iotCardPollingStatusBatchUpdated.Source = "", ""
+	iotCardPollingStatusBatchUpdated.AllowedOrigins = pollingToggleOrigins()
 	iotCardBatchDeleted := ActionDefinition{
 		Code: constants.AuditActionIotCardBatchDeleted, Name: "批量删除 IoT 卡",
 		Category: constants.AuditCategoryAsset, Risk: constants.AuditRiskHigh,
@@ -135,6 +140,8 @@ func NewRegistry() *Registry {
 	deviceDeactivated := deviceAction(constants.AuditActionDeviceDeactivated, "停用设备资产", constants.AuditActorAccount, constants.AuditSourceAdminAPI)
 	deviceDeactivated.Risk = constants.AuditRiskHigh
 	devicePollingStatusUpdated := deviceAction(constants.AuditActionDevicePollingStatusUpdated, "更新设备轮询开关", constants.AuditActorAccount, constants.AuditSourceAdminAPI)
+	devicePollingStatusUpdated.AllowedActor, devicePollingStatusUpdated.Source = "", ""
+	devicePollingStatusUpdated.AllowedOrigins = pollingToggleOrigins()
 	deviceAllocationBatch := deviceMultiOriginBatchAction(constants.AuditActionDeviceAllocationBatch, "批量分配设备")
 	deviceAllocated := deviceMultiOriginAction(constants.AuditActionDeviceAllocated, "分配设备")
 	deviceRecallBatch := deviceMultiOriginBatchAction(constants.AuditActionDeviceRecallBatch, "批量回收设备")
@@ -1707,3 +1714,15 @@ func (r *Registry) Resource(resourceType string) (ResourceDefinition, bool) {
 	resource, ok := r.resources[resourceType]
 	return resource, ok
 }
+
+// pollingToggleOrigins 是轮询开关变更允许的审计来源（后台、Worker、开放接口、C 端、支付回调）。
+func pollingToggleOrigins() []ActionOrigin {
+	return []ActionOrigin{
+		{Actor: constants.AuditActorAccount, Source: constants.AuditSourceAdminAPI},
+		{Actor: constants.AuditActorSystemTask, Source: constants.AuditSourceWorker},
+		{Actor: constants.AuditActorScheduledJob, Source: constants.AuditSourceScheduler},
+		{Actor: constants.AuditActorOpenAPI, Source: constants.AuditSourceOpenAPI},
+		{Actor: constants.AuditActorPersonalCustomer, Source: constants.AuditSourcePersonalAPI},
+		{Actor: constants.AuditActorExternalSystem, Source: constants.AuditSourceCallback},
+	}
+}
diff --git a/internal/infrastructure/pollingpause/recorder.go b/internal/infrastructure/pollingpause/recorder.go
index abe177ba..d5b408a5 100644
--- a/internal/infrastructure/pollingpause/recorder.go
+++ b/internal/infrastructure/pollingpause/recorder.go
@@ -4,6 +4,7 @@ package pollingpause
 
 import (
 	"context"
+	"strconv"
 	"strings"
 	"time"
 
@@ -68,9 +69,10 @@ func Record(ctx context.Context, tx *gorm.DB, change Change, fallback string) er
 			ClosedBy: origin.OperatorID, ClosedAt: now, ImportTaskID: origin.ImportTaskID, CreatedAt: now, UpdatedAt: now,
 		}
 		// 部分唯一索引 (asset_type, asset_id) WHERE status = 1：已有已关闭记录时保留原记录。
+		// 谓词必须写成字面量：启用预编译语句时，参数化的 WHERE 在通用执行计划下无法匹配部分唯一索引。
 		err := tx.WithContext(ctx).Clauses(clause.OnConflict{
 			Columns:     []clause.Column{{Name: "asset_type"}, {Name: "asset_id"}},
-			TargetWhere: clause.Where{Exprs: []clause.Expression{clause.Expr{SQL: "status = ?", Vars: []any{constants.PollingPauseStatusClosed}}}},
+			TargetWhere: clause.Where{Exprs: []clause.Expression{clause.Expr{SQL: closedStatusPredicate}}},
 			DoNothing:   true,
 		}).Create(row).Error
 		if err != nil {
@@ -119,6 +121,9 @@ func RiskEnableDeniedReason(extend string) string {
 	return "风险停机，不能开启轮询"
 }
 
+// closedStatusPredicate 是部分唯一索引 uq_card_polling_pause_open 的谓词字面量。
+var closedStatusPredicate = "status = " + strconv.Itoa(constants.PollingPauseStatusClosed)
+
 func truncate(s string, max int) string {
 	runes := []rune(s)
 	if len(runes) <= max {
diff --git a/internal/service/order/service.go b/internal/service/order/service.go
index 38f405e9..9da04c1c 100644
--- a/internal/service/order/service.go
+++ b/internal/service/order/service.go
@@ -1772,6 +1772,7 @@ func (s *Service) createWalletPaymentRecord(tx *gorm.DB, order *model.Order, pay
 }
 
 func (s *Service) WalletPay(ctx context.Context, orderID uint, buyerType string, buyerID uint) (err error) {
+	alreadyPaid := false
 	order, err := s.orderStore.GetByID(ctx, orderID)
 	if err != nil {
 		if err == gorm.ErrRecordNotFound {
@@ -1852,6 +1853,7 @@ func (s *Service) WalletPay(ctx context.Context, orderID uint, buyerType string,
 
 				switch currentOrder.PaymentStatus {
 				case model.PaymentStatusPaid:
+					alreadyPaid = true
 					return nil
 				case model.PaymentStatusCancelled:
 					return errors.New(errors.CodeInvalidStatus, "订单已取消，无法支付")
@@ -1912,6 +1914,7 @@ func (s *Service) WalletPay(ctx context.Context, orderID uint, buyerType string,
 
 				switch currentOrder.PaymentStatus {
 				case model.PaymentStatusPaid:
+					alreadyPaid = true
 					return nil
 				case model.PaymentStatusCancelled:
 					return errors.New(errors.CodeInvalidStatus, "订单已取消，无法支付")
@@ -1974,7 +1977,10 @@ func (s *Service) WalletPay(ctx context.Context, orderID uint, buyerType string,
 	if err != nil {
 		return err
 	}
-	s.afterOrderActivated(ctx, order, false)
+	if !alreadyPaid {
+		// 重复支付请求不再恢复轮询，避免把运营在两次请求之间刚关闭的轮询重新打开。
+		s.afterOrderActivated(ctx, order, false)
+	}
 
 	return nil
 }
diff --git a/internal/service/polling/polling_pause_service.go b/internal/service/polling/polling_pause_service.go
index b2bea11d..17c8a8a9 100644
--- a/internal/service/polling/polling_pause_service.go
+++ b/internal/service/polling/polling_pause_service.go
@@ -3,6 +3,7 @@ package polling
 import (
 	"context"
 	stderrors "errors"
+	"github.com/break/junhong_cmp_fiber/pkg/auditcontext"
 	"time"
 
 	"go.uber.org/zap"
@@ -259,6 +260,10 @@ func (s *AssetPollingService) RestoreAssetPolling(ctx context.Context, assetType
 		return false
 	}
 	ctx = pollingpause.WithOrigin(ctx, pollingpause.Origin{Source: source, Reason: constants.PollingToggleSourceName(source) + "，自动恢复轮询"})
+	if auditcontext.From(ctx).ActorKind == "" {
+		ctx = auditcontext.With(ctx, auditcontext.Context{ActorKind: constants.AuditActorSystemTask, ActorID: "polling_auto_restore",
+			ActorName: "套餐生效自动恢复轮询", Source: constants.AuditSourceWorker})
+	}
 	restored := false
 	switch assetType {
 	case constants.AssetTypeIotCard:
diff --git a/internal/task/polling_status_import.go b/internal/task/polling_status_import.go
index ed942aa7..fae86202 100644
--- a/internal/task/polling_status_import.go
+++ b/internal/task/polling_status_import.go
@@ -6,6 +6,7 @@ import (
 	"encoding/csv"
 	"encoding/json"
 	stderrors "errors"
+	"github.com/break/junhong_cmp_fiber/pkg/auditcontext"
 	"io"
 	"os"
 	"strings"
@@ -77,6 +78,8 @@ func (h *PollingStatusImportHandler) Handle(ctx context.Context, t *asynq.Task)
 	}
 	rowCtx := pollingpause.WithOrigin(ctx, pollingpause.Origin{Source: constants.PollingToggleSourceImport, Reason: task.Reason,
 		ImportTaskID: task.ID, OperatorID: task.Creator})
+	rowCtx = auditcontext.With(rowCtx, auditcontext.Context{ActorKind: constants.AuditActorSystemTask, ActorID: constants.TaskTypePollingStatusImport,
+		ActorName: "轮询开关导入任务", Source: constants.AuditSourceWorker, CorrelationID: task.TaskNo})
 	results := make(model.PollingStatusImportResults, 0, len(identifiers))
 	success, skipped, failed := 0, 0, 0
 	for index, identifier := range identifiers {
@@ -131,8 +134,16 @@ func (h *PollingStatusImportHandler) resolve(ctx context.Context, assetType, ide
 		err := h.db.WithContext(ctx).Select("id").Where("imei = ? OR virtual_no = ?", identifier, identifier).Order("id").First(&device).Error
 		return device.ID, err
 	}
+	// 与 IotCardStore.GetByICCID 同口径：19 位按 iccid_19、20 位按 iccid_20 匹配（联通卡两种位数都可识别）。
+	column := "iccid"
+	switch len(identifier) {
+	case 19:
+		column = "iccid_19"
+	case 20:
+		column = "iccid_20"
+	}
 	var card model.IotCard
-	err := h.db.WithContext(ctx).Select("id").Where("iccid = ?", identifier).First(&card).Error
+	err := h.db.WithContext(ctx).Select("id").Where(column+" = ?", identifier).First(&card).Error
 	return card.ID, err
 }