Someone often sends messages to harass you. What if you don't know who this person is?

Don't come back. I don't know the number. As long as I don't reply to the message, there will be no post. I never reply to messages from strangers.

Just delete it without reading it.

If you really can't stand it, you can ask your friends to help you see if it's a strange number every time you send a text message. If so, you can ask her to delete it. It will be fine after a long time.

If you don't want to change your number, you must.