Private numbers on a cell phone

I can't go to any of my local authorities b/c the problem involves them and I have contacted my provider but they can't do anything but change my number and I have already had it changed 3 times. These private calls are not only calling me but all 5 of...

my mother's phones which include a nearly 80 year old. I have a different provider and I live in another state. These calls come at all times night day and they always say some extremly ignorant things. I have bought a recoreder and plan on recording them and keeping a log. But who can I get to trace these private numbers on my 6 cell phone numbers. They have also hacked into a few of our accounts on the internet. My family is at aloss on what to do. My father even tried getting lawyers but no one will take on the case b/c they all are associated with our local authorities. (city police, county, state and FBI)

it seems to me that the person has to get your number from somewhere and it can be found at a certain place, your cell phone provider, I would suggest switching cellphone, not numbers, but providers. and just how are the local authoritys involved, here is my e-mail address, send me a message there or on here, Fun mail me so tell me how the authoritys are involved I may be able to help.