What text message should I send to change my phone bill?

Send jf to 10086 to exchange phone charges for mobile phone points.

After sending a short message for a few seconds, you will get a reply, and you can redeem it yourself according to the reply.

When we pay the phone bill, the communication company will give us corresponding points according to the prepaid phone bill. These points can not only be exchanged for corresponding gifts, but also be exchanged for phone bills according to the number of points.