Cleanmean, if you read TSR or MN you can pick up the impression that everyone else is sailing through the process: four offers etc, with barely a care in the world.
There are an awful lot of hurdles and many good applicants stumble over one or two. Many applicants take a couple of years, some more.
And they turn up at medical school grateful to be there and determined to do well. Others may turn up thinking they are God's gift to everything. But hey. Wait a year or two and it would be very hard to tell who got the early offer and who was picked up mid August on their second attempt. DD says that some of the very best in her cohort came through the foundation year.
There is also an amazing array of careers. DDs tutor group had an informal guessing game of who wanted to do what. They got her right, they also got the would-be GP friend with astounding empathy and communication skills right, and the one who has wanted to be a pathologist from the get-go. The very very important attribute for a successful career in the NHS is resilience. Plus an interest in patients (unless you want to be a pathologist).
If the school don't play ball, he puts all of this to one side, and puts his head down and shows them that he is capable of three As. And then next year, assuming that he is not picked up this, writes a stonking PS that talks about how he is determined to be a doctor and that this year's experience has taught him a lot that he can apply both in his degree and in the years to come. He can see a goal and work towards it.
That said, I hope the school give in.