xrdbear
If you're really want to do something about it, even though this was the only helicopter to land there in 3 years, then contact the helicopter owner direct and convey your concerns. The link to the list of aircraft owners has already been posted.
You say you came here to ask for advice, but it turns out you'd already left a message at the CAA. You don't say if that was to ask them the relevant rules or to report the incident and give the helicopter registration.
If you are pursuing the matter with the CAA as a complaint, then it's not appropriate to discuss it further here.
Heliport
BTW, although
Dream Land was quick to give you his "advice" and referred to "everyone", he is not a helicopter pilot. That was his first post in this forum.
It's fine by me if it's his last.
