Just that really and this is really not intended to be a "BBC bashing" thread.
On the odd (less than ten over past six/seven years) occasions I have raised a complaint it has always been dismissed and the reasoning is always the same: "we have acknowledged what you say but we think you are wrong (to paraphrase)"
So my question is has anyone ever made a complaint and the BBC have held their hands up and said "yes I think to are right OP"?