Why did my Unicom card pay the phone bill without prompting?

Generally speaking, there are three reasons why there is no recharge prompt:

1, recharged but didn't pay the arrears, and the mobile phone was still down.

The prepaid phone bill hasn't arrived yet.

3. The recharge was successful, but no prompt was received due to system problems.

If there is a recharge, it is suggested that you can use this machine to call customer service to check the recharge record.