I'm sorry, but we don't need you. We already know what to do.
That's not the exact wording, it's a bit less direct than that, but that's what it meant. For them, accessibility teser implies coding abilities. If I can't provide that, then... Go away, we don't need your help.
Funny that they still haven't done much to improve the accessibility which is substandard in a *lot* of places.