You will help yourself enormously on this Forum if you can wean away from a distrustful attitude
An attitude that has has been obtained by trying to get some answers/action via official routes, I am here because I realise that pilots are normal humans like me and hopefully have a more human attitude than the system which does not care.......
Since you have logged and photographed helicopters overflying, are you able to identify them as civil or military? Do they follow a set route, eg flying to and from a particular direction? This would help lend substance to ShyTorque's theory that they are flying via a navigation beacon and/or a reporting point: or even that you are at that reporting point
Mostly civil I think, I am going to post some photos later to see if some of you guys can help me with ID so I can contact operator direct (I know how to get contact details from reg no, my problem is getting the reg no as already stated).
I was already certain that I was on some kind of route, probably between 2 beacons (or on one). They mainly fly east/west over me, rarely north/south. I suspect they are travelling from M25 to H7 which gives you all a pretty good idea where I live.