After booking the ticket, I only received a short message starting with E Long's confirmation.

Hello, when you receive the confirmation message, it means that your reservation is successful. Just arrive at the hotel to check in on your scheduled check-in date.

When you arrive at the hotel, inform the hotel that you have booked through E Long, and provide the name of the person who booked at the time of booking, so that you can check in in the order.

Guarantee is a kind of reservation. If you didn't provide a credit card guarantee when you made the reservation, but you received a confirmation message from Alligator, it also means that the hotel will reserve a room for you. If the hotel can't provide a room after you arrive, you can call E Long 4009-333-333, extension 5, and the department staff will inquire and handle it for you.