Just becareful with this trip.com as they scam customer by saying cannot use the promocode and they detect is the same user but actually we using all different account, number, email, payment, everything different. They just want to rip customer money off. Even the highest position customer success team manager was super rude that name Vibba with his employee ID TR037366. This is called manager of customer success team while you cannot even give good customer service to your customers. Without customers Trip.com wonot be able to pay the employee remember that! Every single customer is important. Just be aware guys. Use another apps to buy the tickets better