A client's college son did his own taxes and "forgot" to click the dependent box.   He is definitely a dependent.   The 1098-T is significant in the parents' return and useless to the boy.  We discovered it when I filed his parents return and the IRS rejected it because the dependent had already filed an independent return.   I pointed it out to the parents and the boy e-filed an amended return and paid the difference (or Daddy did).  It is June 17 and this happened on May 5.   

I have continued to try to e-file the parents' return and it continues to reject.    What do they do?  File a paper return with a copy of the son's amended return marked COPY DO NOT FILE?