Did not receive passcode

JunCLJ wrote:

I want to sign in my iPhone and choose to send the passcode to my phone number but I did not receive the passcode.

Don't quite understand what you mean by that.

Enter your passcode to access the iPhone.

Read this Apple article: Use a passcode with your iPhone, iPad, or iPod touch

https://support.apple.com/en-us/HT204060