Booking an “unsigned models” job as a signed model?

Anybody ever done this? It’s for a huge client but I already submitted and they got back to me, they specifically listed “unsigned models” as a requirement but I am signed. Didn’t mention it and am not going to.

My agent is non exclusive too, they don’t care if I book directly.

Has anyone ever done this or can offer any advice? I don’t wanna jeopardize any relationships either but damn this is a big client that I’ve literally been dreaming of working for for years now.