Despite the extra steps, I understand that things do happen and slip through. I would however appreciate a language which is closer to "We make our absolute best efforts to provide a clean product", instead of a "this is 100% clean" on the package or "pest free" on your website, which it clearly is not.
I can say with absolute clarity that the animal came with the Chaeto due to the fact that no other life organism had been introduced to the system (bare bottom, dry rock, clean sump) and I discovered it right there in the middle of it an hour after. Introducing Chaeto at that stage of the system actually makes little sense - however that's a different topic
As for where the animal is right now I am out of luck. It managed to slip through quite small slits in the cup I tried to contain it in when putting it into QT. I found the single aiptasia the next morning, however don't want to make that direct connection.
I filed a claim on your website, which is still unanswered - however I assume you're going to respond soon.