The traffic has run out. How to send the SMS of China Mobile's traffic superposition package?

Traffic security package: Send "666 1" to 10086 to enable the privileged service of traffic security package, and the function fee is free. After the service is opened, the traffic fee outside the package will be charged at 0.29 yuan /M first. When the fee reaches 10 yuan, you can use the traffic to 100M for free, and so on, and the rules are the same. If the traffic fee exceeds the package and reaches 60 yuan, there is no charge for the use of 1GB traffic.