Why does my mobile phone have an annual SMS package of-12 yuan? I didn't open it. Why should I open it? Or something.

The annual SMS package 12 yuan has 10 SMS and 5 MMS messages every month.

Annual SMS package discount 1 yuan (12 months) means annual SMS package 12 yuan, and annual SMS package 12 yuan is charged (deducted) at one time, that is, annual SMS package discount 10 SMS, and 5 MMS messages in 0 yuan every month. Overcharge

If you didn't order it, you can call 10086 to ask. Maybe you ordered it by accident, or it came with your mobile phone card. If neither. You can ask for a refund. Finally, don't forget to postpone the monthly subscription.