How to book the night traffic package of Fujian Mobile?

"Local Free Package for Mobile Data Traffic": 10 yuan/month, including 1G local free traffic. You can edit the short message "KTLLXS 10" and send it to 10086 to open a local free package for mobile data traffic. The opening of the current month will take effect in the current month. The current month's expenses and available traffic are converted according to the remaining days of the current month, and calculated for the whole month from next month. And it will not be accepted after the last day of each month 19. For five yuan, you can change 10 into five.