STOP SMS SPAM, I am not interested

I have made numerous requests to your company to stop contacting me, yet a month or two after each request I still receive spam sms. STOP!! Delete my details from your system as I have been asking, I do not want to do business with a company that shows so little regard for people's demands. I will never sign up for your products and you can thank that annoying marketing department that continues to pester me.