I received a letter from IRS in March that form 1116 was missing from my return that I filed in February.  The fax number on the IRS letter did not work, so I sent the form in the mail.  It is still pending and it is preventing the stimulus check from coming as well.   When working on the 1116, I found out a state deduction I missed.  At this point, should I file a supersede tax forms for federal and state before July 15, or wait for IRS to catch up first and file the amended return?