diff --git a/internal/service/highwin/admin.go b/internal/service/highwin/admin.go
index faf9f19..8c25253 100644
--- a/internal/service/highwin/admin.go
+++ b/internal/service/highwin/admin.go
@@ -199,7 +199,7 @@ func (w *BroadcastSimulationWorker) run(ctx context.Context, req ContinuousSimul
 
 func (w *BroadcastSimulationWorker) runOnce(ctx context.Context, req ContinuousSimulationRequest, rng *rand.Rand) {
 	regionCode := req.RegionCodes[rng.Intn(len(req.RegionCodes))]
-	userID, err := w.randomOfflineUser(ctx, req.SysOrigin, regionCode, rng)
+	userID, err := w.randomOfflineUser(ctx, req.SysOrigin, rng)
 	if err != nil {
 		w.setLastError(err)
 		return
@@ -332,14 +332,12 @@ func (w *BroadcastSimulationWorker) sendContinuous(ctx context.Context, req Broa
 	return err
 }
 
-func (w *BroadcastSimulationWorker) randomOfflineUser(ctx context.Context, sysOrigin string, regionCode string, rng *rand.Rand) (int64, error) {
+func (w *BroadcastSimulationWorker) randomOfflineUser(ctx context.Context, sysOrigin string, rng *rand.Rand) (int64, error) {
 	onlineIDs := w.onlineUserIDs(ctx, sysOrigin)
 	query := w.db.WithContext(ctx).
 		Table("user_base_info AS user").
 		Select("user.id AS id").
-		Joins("LEFT JOIN voice_room_region_country AS region ON region.sys_origin = ? AND region.country_code = user.country_code AND region.enabled = ?", sysOrigin, true).
 		Where("user.origin_sys = ?", sysOrigin).
-		Where("(region.region_code = ? OR user.country_code = ?)", regionCode, regionCode).
 		Where("user.id > 0")
 	if len(onlineIDs) > 0 && len(onlineIDs) <= 1000 {
 		query = query.Where("user.id NOT IN ?", onlineIDs)
@@ -363,7 +361,7 @@ func (w *BroadcastSimulationWorker) randomOfflineUser(ctx context.Context, sysOr
 		filtered = append(filtered, user)
 	}
 	if len(filtered) == 0 {
-		return 0, common.NewAppError(http.StatusNotFound, "simulation_offline_user_not_found", "offline user not found for selected region")
+		return 0, common.NewAppError(http.StatusNotFound, "simulation_offline_user_not_found", "offline user not found")
 	}
 	return filtered[rng.Intn(len(filtered))].ID, nil
 }