Why did you send me a text message when you didn't go to Fujian Mobile?

There are two situations. First of all, the original province reminds you that you have left the province.

Tell me that your mobile phone number is already roaming, and you should shut down some services that can only be used in this province, or you will incur extra charges. The second is the welcome message to the province. Welcome to the province. This is a public service message of operators, in order to enhance their image.