I got this today from 900-070-002857.  I also have a text plan with verizon.  Some type of spam or worse!!

I got this too and I have a text package already. I didn't respond.

Got a text message from 90-007-000-2075 reading "Free VZW MSG: Based on your recent text usage, you could save on a text package. Call 800-728-6038 for more information and to sign up. Reply Q to opt out."  I have a basic text plan and my usage is not excessive, so it's curious that I received such a message.