Error in binding mobile phone number verification code for Xiaohongshu.

Xiaohongshu can't get the verification code because he entered the wrong mobile phone number or someone else's mobile phone number, and the short message was sent to someone else's mobile phone, or because his mobile phone was turned off due to arrears. In this case, he can receive the text message as long as he pays the phone bill. These are the reasons why Xiaohongshu can't get the verification code.