Followup...
NoiseAsh support was quick in getting back to me but said they hadn't a clue about what I was talking about.
However, shortly after that, they removed the hijack from the YouTube account.
In all fairness, was my fault as well. Note that the website has a couple Facebook like links that were at least earlier crossed out and an error message if you click on them. That left the YouTube link which has some fine print, or maybe not so fine print about letting NoiseAsh manage your YouTube page. Either a Facebook like or a YouTube account surrender was required first.
Support was at least responsive although not admitting any alteration of the account. Can't entirely fault them. Takes an idiot downstream to click the button surrendering your first born child..
Please be careful about this "freebie", as Maartian pointed out.
John