Harrassed by national debt councillors

I keep getting calls from various national debt regulatory companies daily 2 to 3 times from numbers like these ... *** or *** ... I have asked everyone to remove my number from their databases to no avail ... When asked for their supervisors they point blank say NO then put tge fone down ... How do i remove my number from their databases??? How do i contact their firm directors??? The irritation goes beyond an occasional call and has overstepped into stalking harrasment and pure blatant disregard for the popi act and other legal issues ... Its gotten out of hand... Who do they think they are????