I just got a denial letter to renew my 16yr old sons green claiming he did not appear for the biometrics at the local immigration office.

We actually did show up for the fingerprints but was turned away because the id we presented was not sufficient enough. We even spoke with the supervisor who did not submit the paperwork for . I have asked for a review of the case which has been declined for lack of evidence . what can i do at this point. other than file for an appeal (form I-290 which would cost me an additional $630?)