Fake. According to the query of Sihong Online School, a large number of students in Sihong Education gave feedback. Some criminals pretended to be the staff of teaching and training institutions to send text messages, claiming that they could apply for a refund. Many educational institutions also encountered similar situations. Facts have proved that this is actually a new scam under the banner of student refund. Short message is text or digital information sent or received directly by users through mobile phones or other telecommunication terminals, which is the number of characters that users can receive and send short messages at one time.