The phone number is missing one digit, and texting always shows that the recipient is another person.

My mobile phone is g8, and I have encountered the situation you mentioned. When a contact enters the SMS interface, it will become another person's directory! This may be a question of his self-identity. Maybe two people have similar phone numbers or names.

The solution is to re-enter two numbers or add 86 before one number, so that the mobile phone can identify itself. That's what I did. Come to me if you have any questions!