Hi @Bodhihana and welcome to the Community! 🙂
Based on your screenshot, this appears to be the work of a spammer or bot. Official notifications come from Spotify via the app or your registered email.
If you don't recognize the # these are being texted from I suggest you add it to your block list. This won't impact the info you might choose to receive from Spotify directly instead. Hope this helps and have a wonderful day! 🙂