Why is the amount of data used not shown when querying China Unicom’s ice cream package?

Unicom ice cream package users can edit the text message "CXYL" to 10010 to query the package balance information. The text message will prompt the ice cream number's used traffic for the month; they can also use China Unicom's online business hall and mobile phone APP. After logging in through the mobile phone number service password, enter the query to view the number's used traffic for the month.