How to send text messages to China Unicom to check package traffic and phone charges?

Different regions have slightly different text message instructions. For example, Shandong customers can directly send text message 412 to check the preferential usage in the package (including traffic, text messages, package minutes, etc.), and send "101" , "102", "103" to check the current month's phone charges, balance, last month's phone charges, etc. For specific inquiry methods, it is recommended to contact 10010 customer service, or directly log in to the online business hall - self-service - check the relevant self-service queries under phone charges.