Why does my mobile phone receive a text message from my mobile phone number?

Dear, if you indicate that you have received the short message about solar terms sent to you through the email address 139, I suggest you log in to the "Subscribe to Calendar" on the left side of the email address 139 to check whether you have subscribed to the "Twenty-four Solar Terms Health" public calendar. If so, it is suggested that you can keep or unsubscribe as needed. If the calendar reminder message is only sent to the local number, there is no charge ~