How do telecom cards earn free text messages?

There must be an activity. Just pay attention.

Just ask the local business hall.

Different places, different details,

The local business hall can give the real answer.

The method is as follows:

One: Call the customer service of three telecom companies,

Two: Unicom, mobile, telecommunications,

Three: then manual service,

Four: ask the phone number of the local business hall.

Then call the business hall to ask.

Remember to adopt before you go, thank you!