19.9 yuan 20g traffic package can be used at any time?

If only the application business does not take effect in the current month, it will be counted from September 1. If the application takes effect on the day of August 1 1, it will be one month from August 1 to August 3 1, and one month from September1. After the service is opened before 16 every month, it will be charged normally, and after 16, it will only charge half of the fee. This is how mobile data traffic packets are calculated. It can be carried out within a month, and every month can be used from the beginning of the month to the end of the month.

You can call the manual service phone to inquire about the relevant traffic usage.