How long or how much will the number of China Unicom be in arrears?

When 2/3G users exceed the credit limit, they will send short messages to inform users to stop, and immediately start single stop; After 7 days, send a text message to the user to inform you.

Generally, when a 4G user exceeds the credit limit, he will send a short message to the user to stop the loss and immediately start the single stop; 10 days later, send a short message to the user to inform the double stop, and start the double stop 24 hours later.