How to open 300 SMS packages for Guangzhou M-Zone Card?

Now it can only be changed into a music bag. 300 SMS messages in 35 yuan, 20 (SMS) +6 (incoming message) +9 (music card &; Answer is free), the previous 20+6 can't be changed, you can change it in the M-Zone, and it was ok some time ago, but you can't change the previous one ~