Does it matter to me that the mobile phone number is always the last user message?

It doesn't matter to you No, you owe money. You received this because he didn't change his mobile phone number. Now that you have real-name authentication, it doesn't matter whether you accept this or not.

Well, you can call the customer service of the mobile phone operator directly to tell them what you have encountered, and as a new mobile phone number, you can also receive the information sent by the old owner, indicating that his mobile phone operator has not deleted the previous information.