Well, what a palaver.
Livealgae.co.uk turned out to be excellent as you guys said, however, that Leigh chap on Ebay left me wondering when his chaeto didn't arrive, after some fruity messages from him, he's allegedly refunded me.
I think based on his profile, that he just sells on chaeto that he's farmed from his refugium. I can't prove that of course, but his Ebay profile picture, with his partner does not look like a professional pic: ie. a logo.
So if he were to farm from his refugium, there's a chance nasties are hiding there, whereas the livealgae.co.uk make a point of dipping their algae before shipping.
I know where I get mine from now on.