Can I change order details after placing an order? No, you can't. Please cancel and place another order, or call our customer service hotline at 3590 3399 for help. Related articles Can I cancel after an order is placed? How long does it take for a courier to accept my order? When is the cut-off time for 4-hour delivery service? When is the cut-off time for same-day delivery service? Can I cancel the order by myself?