buoy 15,
Just let them get on with their job. Ok, occasionally we had to put up with using an Ascot callsign for an overseas, but to be honest, it was a better callsign than using one of our Rafair xxxx crap callsigns, or worse, at least people knew we were RAF.
I agree though, it is much easier, and better, to organise yourself your own life, rather than rely on any kind of ops personnnel to organise your life for you.