diff --git a/backend/app/http/admin/orders.go b/backend/app/http/admin/orders.go
index ae2552f..5c26d11 100644
--- a/backend/app/http/admin/orders.go
+++ b/backend/app/http/admin/orders.go
@@ -3,6 +3,7 @@ package admin
 import (
 	"quyun/app/models"
 	"quyun/app/requests"
+	"quyun/providers/wepay"
 
 	"github.com/gofiber/fiber/v3"
 )
@@ -13,7 +14,9 @@ type OrderListQuery struct {
 }
 
 // @provider
-type orders struct{}
+type orders struct {
+	wepay *wepay.Client
+}
 
 // List users
 //
@@ -24,3 +27,15 @@ func (ctl *orders) List(ctx fiber.Ctx, pagination *requests.Pagination, query *O
 	cond := models.Orders.BuildConditionWithKey(query.OrderNumber, query.UserID)
 	return models.Orders.List(ctx.Context(), pagination, cond)
 }
+
+// Refund
+// @Router	/admin/orders/{id}/refund [post]
+// @Bind	id path
+func (ctl *orders) Refund(ctx fiber.Ctx, id int64) error {
+	order, err := models.Orders.GetByID(ctx.Context(), id)
+	if err != nil {
+		return err
+	}
+
+	return ctx.JSON(order)
+}
diff --git a/backend/app/http/admin/statistics.go b/backend/app/http/admin/statistics.go
index 45f5062..c5f937f 100644
--- a/backend/app/http/admin/statistics.go
+++ b/backend/app/http/admin/statistics.go
@@ -43,7 +43,7 @@ func (s *statistics) statistics(ctx fiber.Ctx) (*StatisticsResponse, error) {
 		return nil, err
 	}
 
-	statistics.Order, err = models.Orders.Count(ctx.Context(), table.Orders.Status.EQ(Int(int64(fields.OrderStatusPaid))))
+	statistics.Order, err = models.Orders.Count(ctx.Context(), table.Orders.Status.EQ(Int(int64(fields.OrderStatusCompleted))))
 	if err != nil {
 		return nil, err
 	}
diff --git a/backend/app/models/orders.go b/backend/app/models/orders.go
index e644ef9..a0491a8 100644
--- a/backend/app/models/orders.go
+++ b/backend/app/models/orders.go
@@ -227,7 +227,7 @@ func (m *ordersModel) Count(ctx context.Context, cond BoolExpression) (int64, er
 func (m *ordersModel) SumAmount(ctx context.Context) (int64, error) {
 	tbl := table.Orders
 	stmt := SELECT(SUM(tbl.Price).AS("cnt")).FROM(tbl).WHERE(
-		tbl.Status.EQ(Int(int64(fields.OrderStatusPaid))),
+		tbl.Status.EQ(Int(int64(fields.OrderStatusCompleted))),
 	)
 	m.log.Infof("sql: %s", stmt.DebugSql())
 
diff --git a/backend/app/models/posts.go b/backend/app/models/posts.go
index b5227de..40c5e00 100644
--- a/backend/app/models/posts.go
+++ b/backend/app/models/posts.go
@@ -292,7 +292,7 @@ func (m *postsModel) Bought(ctx context.Context, userId int64, pagination *reque
 			tbl.INNER_JOIN(table.Posts, table.Posts.ID.EQ(tbl.PostID)),
 		).
 		WHERE(
-			tbl.UserID.EQ(Int64(1)),
+			tbl.UserID.EQ(Int64(userId)),
 		).
 		ORDER_BY(tbl.ID.DESC()).
 		LIMIT(pagination.Limit).