My Galazy S 3 does not have the Spam settings selections for text SMS, but I was able to block the phone number. Maybe that will block the SMS too?
But strange the spam selection not there. I recall seeing it at one point going through my setting a while back but not there now.
I am somewhat computer challenged since I am 72 and a self taught user of the computer and the cell phone without class. Have been doing alright most of the time.