Joke Collection Website - Blessing messages - How much is Unicom sending SMS to check the traffic?

How much is Unicom sending SMS to check the traffic?

"If you need to inquire about the traffic usage details, you can send CXLL (case insensitive) or 107 1 to 100 10 to inquire about the traffic usage of this month as of the previous day. In addition, you can also log in to the Unicom online business hall or the Unicom mobile phone business hall client for inquiry. "