I didn't use the little red book, but my mobile phone received the verification code of the little red book.

This is probably the kind of code receiving platform.

Register by stealing other people's information and then make a profit for yourself. You don't have to pay attention to him, just blacken it.

In this case, you can call which company your mobile phone belongs to. It's from China Mobile. Call 10086 Telecom Unicom. I don't know. Then tell him the situation and let him tell you the way. Just follow the operation and contact the official customer service as soon as you encounter problems.