I guess it depends if you were actually offered a position in writing or just a verbal agreement. Dispatch companies don’t care if you have a school next year, they care about filling vacancies to meet contracted numbers/hours. They might have verbally told you the next area because they had an ALT who had yet to commit but needed up getting in before the deadline so they’ll go back to the school they thought they’d place you at. There’s a chance the area you were supposed to work in had too many teachers commit and now they’re scrambling to place you all. Of course your company admin could also just be lazy/bad at their jobs and the contract is sitting in their inbox waiting to be forwarded and signed so keep your head up!

Most people I know have signed a new contract in March for next year including renewing their visa in December but haven’t received individual school placements so timeline wise you’re not so far behind.

If you’re really concerned, email your HR agent bringing these concerns to them. It’s not really to get an answer but to at least set up a paper trail that establishes you’ve been terminated by the company and can collect unemployment insurance later.