Thanks for the support, and I agree that if you feel a paper may have been marked unfairly/wrongly then you should feel no guilt about asking for a remark.
The thing is, I had no such feeling. My son is quite self-contained and does not like my interfering in his school work, so I have precious little idea about the ins and outs of exam content, coursework content and marking boundaries. It's all greek to me. All I knew was they he had been predicted at least one A and felt confident enough at the time to apply to his first choice on the basis of achieving at least one A.
So, actually when two subjects came back a whisker off an A, I decided to enter a £100 lottery - because I could. Not because I suspected he'd been done down.
For a variety of reasons it suits the whole family best if he could go to his first choice of uni, and so I took a punt because I could afford to, and thought 'Why not?'
I am painfully aware that some wealthy people may do this as a matter of course with every subject that comes back in the middle of a grade, in the hope they can nudge a handful of them up a grade, just for the hell of it. It struck me that only very affluent parents could/would do this, although in practice I'm not sure many actually bother unless something important hinges on the outcome. It just occurred to me that some kids might get better outcomes because their parents were able to throw loads of money at it, without batting an eyelid.
Having said that, we know that the universities' grade requirements are weighted/flexible according to the efficacy of the school they attended /parents socio-economic staus and educational background, so I suppose this goes some way to rectifying any perceived 'unfairness' in the system.