Mate, it seems that everyone gets stitched by OASC at some point, some more than others. You must be gutted that they've done this to you but don't lose heart. Try and try again, if they want you (and as the other guys have said, if they haven't sent you the 'no way' letter then they probably do) they'll have you eventually.
I don't know how old you are, but if you feel you're running out of time before the entry age don't forget that the RN recruits up to the age of 26 not 23 like the RAF.
It's hard on you, I've known some absolute numpties get in and other good guys not. The numbers game is random and seems to change daily! Just don't give up...
By the way, my mate says 192 Course was a good'un, but I'm sure yours will be better once you get there!