Sorry this is long but I am so angry and upset on his behalf and have nowhere to vent.
DS2 (19 yrs old) has never had life easy. He has a very visible physical disability and an invisible one (HFA) which have given him more than his fair share of medical and social problems since birth. He had a truly awful first year at uni due to extreme isolation during Covid and some bullying.
The one thing that worked out for him was that he studied really hard and as a result got offered an exchange scholarship to a US uni for this coming year. The US uni was supposed to release a form to him in March that he needed before he was allowed to apply for his visa. He asked and asked for it. It was eventually released last week. He immediately spent 12 hours completing it and returned it to them.
They sent it back to him this week and he finally was able to apply for a visa. The visa interview date came through and it is two days too late for the cut off entry to his first semester at the US uni. (Term starts on Aug 19th. The latest day they will accept him is 3rd September. The visa interview means he can't possibly get to USA before 5th September at the earliest. We have phoned the Embassy - they can't and won't expedite it. The uni's delay in releasing the form effectively means they have jeopardised his entire study abroad year.
He now has no US uni, no one to share with at his UK uni as the friends he eventually made when he returned in the summer term have already got sorted for houses and his only option is to get an emergency accommodation back in the block where he was locked up alone and descending into severe depression last year.
I am so sad for him and so frustrated that there is nothing we can do to change the dates. And I am so so tired of him constantly putting such effort in to everything he does, from friendships to academic study, just to be perpetually knocked back.
Don't suppose any MNer has magical influence at US Embassy in London? 
If not, this is just a vent at the ongoing injustice in his life. I feel like nature didn't give him the best start and he deserves a break at some point.