Cas have turned down the request and told him in no uncertain terms that as he signed a 5-year deal 8 months ago he is going nowhere. There are also issues surrounding his "agent" who is not registered by the RFL. It's a very stupid thing for a very highly paid 19 year old to do, particularly considering the club are currently paying him very well. It's unlikely he will get anywhere near the same wages he does now anywhere else.