The whole issue of how elders may use private Internet communications really interests me as I suspect that people's curiosity and desire to find evidence leads them to do things that are actually illegal.
Who hacked your Facebook? Was that a deliberate act by the elders or did you accidentally do something like let a "friend" use your PC without first having logged out? How were they cyber stalking you?
I know you are in UK and we do have pretty robust computer misuse legislation. I have a strong suspicion that some of the tactics employed by individuals certainly would fall foul of these.