I haven't heard of this express delivery. Every time I receive it, I send a text message at a fixed number. This is a mobile phone number. Will it be deceptive? It's usually text messages.

There is a courier service. . . Sure, the courier sends you a text message on his mobile phone. . .

Because you are a student, he calls you at any time, and you definitely don't answer in class, so things sent to school are usually sent by text messages.

He is just a courier. This is a notice. If you don't believe me, check for yourself whether the shopping has arrived or not, and whether it is using USU.

What is the name of your school? He doesn't work in your school. . . .