It's so annoying. I get 2 of the same notification at 6:04pm (Want to have your FREE daily inspiring Love Quotes?), 1 notification at 11:21pm (Want to have your FREE daily Sports Trivia?), another 2 of the same notification at 2:50am (Want to have your FREE daily Feng Shui Tips?), and several others yesterday. And I've already texted STOP to 2682 numerous times since yesterday.
If it's a glitch in your system for automated messages, you better fix it.
If you're doing it deliberately, then you're a bunch of idiots.
I suggest you call the hotline and let them do it. At the very least it would be documented and could serve as your basis for complaint if needs to be elevated. Don't forget to get the reference number.