I also get repeated calls from this business despite asking to be put on the do not call list. Calls are made from various numbers and as soon as I block one, calls come in from another number. Often when I answer the phone there is silence followed by a dialtone. I've informed them I'm on the Do Not Call list, they simply ignore it. They also know my last name. I asked once how they got it, and they claim it was "sold" to them by a supermarket. They are breaking the law in several different ways. I've never done business with them. I even told them I already have a solar system, and they still keep calling usually in spurts based about a month apart. I've reported the number to donotcall.gov and I encourage people to do the same. If you feel it's a waste of time, the government won't pursue it if only one or two complaints come in.