Is this official DQ notice?

NVC responded to our inquiry stating that my case is DQ’D: ‘This case is documentarily complete, which means the NVC has all the documents we requested. Your immigrant visa case is waiting for an interview appointment, where a consular officer will adjudicate it, etc.’

Is this it? Or do we need to wait for an official DQ email, since this was a response to our public inquiry?

Thank you!