If you find that there is something missing, the best course of action is to contact the provider and ask them to investigate. If that's unsuccessful, the IRS does have a form 14360 to file a complaint.
If you'd prefer a nicely done 12 page NAEA Power Pointpoint presentation, click the link. You'll have to log in with your NAEA id and password.
NAEA Phone Numbers:
202-822-6232 or Toll Free: 855-880-6232