How to apply for SMS package?

Guangdong Unicom Shifeng (except users of New Time and Space New Power Package), Ruyi Tong, Ruyi Wanzhong Card, New Power, and post-3G/ prepaid users (excluding 3G family cards, clone packages, daily traffic rental cards (including various versions), Changshuang Youth Package -30/50/80 yuan Package), 9 yuan Wopai Campus Package and New Power Exclusive Edition Package can handle SMS packages, such as 30 yuan Package 30. 5 yuan included 60 short messages and 5 multimedia messages. , can edit SMS? BLDX3/5？ Send it to 100 10, and the application, change and cancellation of the package will take effect on 1 the following month. If multiple applications are made in the current month, the last application shall prevail.