Limbo - How low can you go?

I should probably mention that I'm kind of at war with my boss at the moment. I've made 2 trips to the labour board already. The first earned me a letter from my employers refusing my demands for money they've withheld from me and lovely threatening language about how I'm a terrible teacher and am in serious danger of losing my job because my teaching ability is insufficient. This was never mentionned before my trip to the labour board, of course. If only I had the letter with me now I could make fun of it. There's a part about me not being 'a RESP teacher.' I'm not exactly sure what that means. I can only imagine they weren't able to listen to the Aretha Franklin all the way through. Not that they know what the word means anyway.

I'm worried that I might be fired sometime next week and that they'll deduct the recruiting fee and airfare from my last paycheque. I guess I just get to sit in suspense until that happens. I'm almost looking forward to that since I'd be able to go back to the labour board and claim unfair termination. Basically the problem is that I wasn't fully paid for morning classes I taught back in August, they haven't paid me overtime for some Saturdays that I worked and they withholding too much tax from my paycheque. All in all, it's quite a bit of money. The only problem is that I might not get any of it because of some strange tax law that lets employers pay income tax only once at the end of the year. Therefor, the tax office has no records as to how much tax I'd actually owe and so it's unsolvable from the governments perspective until my boss actually pays my taxes at the end of the year. The other things were just verbal agreements and so I can't prove anything.

It's just really frustrating and I don't know what to do quite frankly.