How to unsubscribe from the monthly card I accidentally bought at Henan Mobile?

First, open China Mobile on the mobile phone, then click My on the homepage, then click Login in the personal center, click the subscribed service after login, and select value-added services among the subscribed services. Finally, you can see the unsubscribe service in the value-added services, and click Unsubscribe to unsubscribe from the service. You can also edit "0000" and send it to "10086"; Then, after receiving this short message, we only need to reply the serial number of the business we want to unsubscribe from.