Is agoda's hotel reservation reliable? Why haven't I received the confirmation email?

I use agoda to book a hotel every time I travel. Generally, you will receive an email and a check-in certificate within one hour after a successful reservation. If you don't receive the mail, you can check whether it is in the mail filter or in the trash can. If not, you can call agoda customer service for consultation, or you can log on to the website for reservation information.