FullScreen reattached my channel to another 6 months to their contract because I didn't request to leave. And I don't want to stay with them. Is their a way for Freedom to remove my account with them and link my channel with Freedom?
You can only requist an unlink from the network your partneres with. If your contract goes for another 6 months and have a lock-in contract then you have to wait till it ends before you can join a other network.
Unfortunately there isn't anything Freedom can do, it's quite hard to leave networks that have a lock in contract. I have heard if you are under 18 there is a chance you can be released from the contact.