Ctrip booked a hotel in Malaysia … how to contact the hotel's pick-up service? No mailbox?

Standard email format: user name @ domain name, QQ email is recommended, and any platform registration is supported. E-mail address: own QQ number @ qq.com. You need to log in to mail.qq.com for the first time to activate, and then fill in the email address to register (the format must be correct and a valid email address is required). After that, the system will send the verification information to your registered email address. After you open the registered email address and click the verification link to activate your account, your platform will be registered.

I hope it helps you!