Thanks for all your responses
Farci and Ancient Observer, thanks for the sayno link, I am already an avid user of that website, but the number on there is for BMI not for BMIbaby, and the pelasant call centre man in India reminded me of that when I called.
Easy flyer at 10p a minute I would have no hesitation incalling the number, but at 65p a minute they are taking the micky. They know full well that the longer they keep you on the phone the more money they make to subsidise their "low cost" flight tickets.
As my son and my friend are booked on the same reference it does look as if there will be no problem, and I will send my son with a letter of authority from me when he travels.
If I ever get a written response from Baby I will post it here.
Thanks again everyone