New text not showing number just name

[Android Central Question]

I'm selling something online and someone new to me and my mobile sent a text message that does not show their number, new texts not in my address book always show their number but this one is just a name "soge" there is no option to call them back with the call icon just a duo icon but if I press the duo icon android says this person is not set up for duo, also they wanted me to contact them by email which is weird since they texted me it's a Gmail address. I can't even reply back through text as there is no way to start typing so is there blocked or silent mobile numbers that behave like this

 

[B. Diddy]

Welcome to Android Central! Keep in mind that most carriers allow people to send a text message via email to your phone number. If you bring up the contact information for that person, does it show an email address?

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