HankP I really hope you have success in recovering thse funds for your sister. On the face of it I would think it is a really good break for you that Joyland has come under William Hill ownership and not been wound up. It looks like you have a very strong case but it is ofcourse very difficult as an individual taking action against such a large company as William Hill (who themselves may have been duped). It is a difficult situation and will no doubt make a lot of money for some lawyers.
Best of luck HanKP. As players let's stop taking this abuse and demand a better system.