Are you sure you reported them to the correct authority? They are already in trouble with the authorities in more than one country and I know, for a fact, that even though they have an office in London, they are NOT allowed to practice law in the UK. Perhaps you should try reporting them to a different legal authority. This way they will be alerted to the fact that people are still complaining about this fraudulent law firm and they might be shut down completely by the UK authorities. I wouldn't give up yet. Keep on trying - you might be surprised at the results you can get from sticking with it. Complain about them on every forum and site you can find. They won't like that at all and might give you your money back just to shut you up.