Excessive calls

I have asked MiWay many times to stop calling me and to remove my details from whatever list they have. I DO not own a Car, I DO not drive. I live with my in-laws so I don't need insurance. Every time they call I have to answer if I do not it will result in them calling 3 or 4 times on that day or later through the week and every time I tell them the same thing. Which results in the person on the other side being so upset and changing their tone of voice over the phone. I am sorry that my details were given to you but it should not have. Please STOP calling me.