Why do you always receive text messages from Yijing class?

I always get text messages from the Yijing class because:

1, you registered the account of Yijing class and learned about the related course contents. The system will judge that you are a potential customer, so it will send you the sales information of Yijing.

2. fraudulent text messages. Fraud gangs will use the ip of Yijing class to post link messages. After clicking the link, you will be asked to fill in your personal information. Never fill it in to prevent information from leaking.