Take my advice and complain on the hotline. It worked for me.
The incident was when I was unfairly punished with 2 extra and I
have more duties than other men. It was a trivial issue and
somebody else's fault but they punish both of us. I was a target
because I was in the same situation as you: A levels and medical
excuse.
At first I was scared of posting out, because I was living very
near my unit. I stay out. But my OC talked to me and the regulars
privately. The regular treated me very nicely for a few months
until he was posted out to another unit.
That time, I had more than one year left and was afraid they
would make life difficult for me, anyhow punish or charge, award
extra, burn off etc or even purposely post me to a far unit. But it
didn't happen and I enjoyed my time there. My OC sympathized with
me because he was also bullied in his time for being well educated
and even as OC regulars disrespect him too.
You don't have to "win" any investigation or get the regular
punished. Army culture involves a lot of twisted logic. The guy
said "I use foul language but I don't mean it, I am from a humble
background not like you." My OC found it hard to punish them, but
told them to treat me more decently to avoid trouble.
Also you should try and have more friends. When you are alone,
they will treat you nice or bad as and when they feel like it. When
you make more friends, even if they are fake friends, they treat
you more like a human being.