So i dont see what the police would do regarding the harrassment? I mean o2 say the police will contact o2 then they can sort out who it is calling from there.
This is precisely why they would get involved, IMO; because it's an easy one for them.
Now this is not fact, but an educated guess;
You inform the police, who having received a complaint, can now ask O2 to log all calls made from and sent to your phone. So O2 now have to comply (it's easy for them). Piece of p*** job for plod, as they don't actually have to do anything. No manpower or costs involved and it gets a result
Getting involved with kids who might/might not have been involved in the van thing is far too much bother.
"What? calling two men out, involving half a day filling out forms? That's not cost effective, me old son. Real crimes cost far too much for us to get involved."
I guess you can tell I'm very cynical about the police, as are most people, I suppose
Seriously, that's the way to go, IMO.