Last week I started getting calls from this number and I know I didn't promise to give them anything so I never answer. They call every day, all day and I never answer and they never leave a message. I suppose there is no way to stop these kind of calls. They are calling every day starting at 8:15 in the morning until 8 in the evening. Even if I promised anyone, anything, this would surely stop me from giving.
This website is not a "Do Not Call" service. It is a site for those wishing to give and receive information about callers instead of always answering the phone blindly and getting our number included on a "good numbers" list for telephone fraudsters. Search "Do Not Call" to find the federal site for LEGITIMATE callers to observe, but it sounds like you need to realize that illegitimate, scammer organizations do not care if you do not wish to be called, and federal dollars are going in directions other than enforcement of fraudulent phone callers.