Hackers and tormentors

My home internet with Xfinity has been hacked and the people doing it have been tormenting me and my family. They are constantly reset ing all my account passwords to comcast Xfinity personal sites social media and banking. It's not enough for them to just steal they have to irritate me by doing little things like constantly resetting the page as I'm resetting my passwords. I know they have control of the home router and even my iPhone. I've been told  and seen evidence of spyware/adaware on my iPhone even thought the apple store said it was impossible. I've delt with hackers before and what makes this different is that it seems personal to them and the level of acccess they have. Can you please help me with this. Either monitor my network or run test to scan the router for me? Everything I try get shut down or times out or they do something else to prevent me from even checking. Thanks