How is it calculated that users in Chengdu M-Zone send messages after sending 300 messages?

Send Unicom. PHS 1.5/

You can also subscribe for a month.

I used the old dynamic, 10 package 150, 20 packages 350, 30 packages 600.

If you don't know the specific charging standard of the new trend, you can call 10086 for consultation ~! !