Welcome to the community!
I'm not sure I quite understand... If you cancelled your contract by paying out your phone balance, then the phone should be yours. The initial $200 paid towards the phone when you signed the contract would be a part of the cost of the phone so you wouldn't get amount back. The total cost of phone is upfront cost plus subsidy. The upfront cost is the $200. The remaining subsidy is what you paid to cancel your contract (ie balance of cost of phone).
Could you please explain what you're asking further?