Often send text messages on your mobile phone, saying how many points you have left, and the points can be cashed. What is the integral?

The integral is the integral of your mobile phone number, which can only be used if you pay the phone bill. If it is mobile, it should also be branded, only in M-Zone and GSM. Please call the local service desk for details. I think the points will be directly converted into phone bills. What I got was not very practical. I hope it helps you.