Mobile1010621200 sends messages every day. What kind of business is this? How to cancel.

Please send five zeros to 10086 to try to cancel, and then send it by SMS. Because it is a short message business hall, the short messages sent are free. The above method is invalid, and it is cancelled in the online business hall (www.xx.chinamobile.com). XX in the website is the initials of your province. The path (I don't know if there is any difference between different websites) was cancelled in "My Customization" after logging in. Log in with your mobile phone number and business password. If you don't know the business password, it will be more convenient to use the SMS business hall.