Manchester United refer City to the FA in dispute over Cup tickets | Football | The Guardian
I think it's a tit-for-tat measure.
But, I also understand the 15% is easily circumvented on the grounds of safety. Most clubs have an all-too cosey relationship with the board which decides these things. In fact didnt we under-supply FC United of Manchester on some bizarre safety reason? I seem to recall the reasoning we gave seemed to contradict other higher profile and category games.
Correct.