Specials on SMS... WHY??

I would love for them to remove my number ***) from their sms list, they use the ploy of entering a contest to win a car or something, and then they BOMBARD you with unwanted and unwelcome SMS's, I have blocked numerous numbers of theirs on TrueCaller, but every time they use another number. I DO NOT CARE ABOUT THE SPECIALS.... honestly I don't... If I want meat I will go to the store and find out what the specials are etc, it will also give me an excuse to browse through the shop for anything else I might need. Currently I avoid the shop, basically as a silent protest...