After you file

Call the IRS:  1-800-829-1040  hours 7 AM - 7 PM local time Monday-Friday

Or you can contact your local IRS office.  See this IRS website for local IRS offices - http://www.irs.gov/uac/Contact-Your-Local-IRS-Office-1 or call 1-844-545-5640 to set up an appointment

Or you may want to contact a Taxpayer Advocate in your area.  See this IRS website for Taxpayer Advocate in your area and a toll free number - http://www.irs.gov/Advocate/Local-Taxpayer-Advocate