I bought from this company 1 time 15 to 20 years ago. They go in spurts of calling 10 times per day to 1 time per week. They call at all hours, during working hours interrupting my work, early AM hours waking me up, late evening hours waking me up. I have asked over and over and over to stop calling me. I stated I would never buy from this company because they won't stop calling me. The phone number that appears on my caller id, changes all the time, so blocking them does not work. I have been on the Do Not Call Registry for all of this time, but it has not helped at all. I work in IT and am on call all the time, so I must answer the phone and I don't think I should have to change my number for this. Besides somehow they would find it again and keep calling. How can I make this STOP?