STOP HARASSING ME!!!!!!!!!!!!!!!!!!!

I have asked Cell C on numerous occasions to stop harassing me with phone calls, if I want your product I WILL COME TO YOU!!!!!!!! I dont know where you got my details from, but I want you to lose my details. I once got lucky when an understanding supervisor said he will contact some technician somewhere and remove my details, that worked... for a few months, and low and behold CELL C IS BACK WITH THE HARASSING PHONE CALLS!!!!!!!