Did you agree cancellation rights?
In that case, I'm afraid there is no challenge.
However much our dogs mean to us, they are property.
You handed him over to the rescue. He cannot be recovered in law unless you agreed specific rights of cancellation which you did not.
It was not for them to explain the paperwork I'm afraid. It was for you to read it.
I'm very sorry.
Can I clarify anything for you?