How to use the money in the mobile phone when sending text messages?

You'd better consult whether the monthly deduction of 20 yuan by Unicom customer service includes the monthly subscription service of some communication operators. Don't take it for granted that you ordered some useless monthly subscription items on the spur of the moment. As a result, 20 yuan is still true, and you wasted money. If you can, I suggest you order the download version of Rising Antivirus, which costs ten yuan per month. I've been using this.