Does the balance of China Mobile remind you to spend money?

Gansu Mobile's balance reminder is free. When the balance is less than 20 yuan, 10 yuan and 3 yuan, you will be prompted. This service is free of charge. In addition, if the one-time fee exceeds the available balance at the end of use, such as the customer's existing balance 10 yuan, and the mobile phone traffic is gone, there will be a package Internet fee. The one-time phone bill of 1 1 yuan will directly lead to arrears and downtime, and you will not receive a reminder message.