I suggest contacting IRS to discuss why IRS failed to recognize one of your es payments. Make sure to have a copy of the cancelled check you used to make the es payment when you call IRS. The IRS phone number is 1-800-829-1040. You may also contact your local IRS office or Taxpayer Advocate in your area, see the links below.
See this IRS website for local IRS offices - http://www.irs.gov/uac/Contact-Your-Local-IRS-Office-1
See this IRS website for Taxpayer Advocate in your area and a toll free number - http://www.irs.gov/Advocate/Local-Taxpayer-Advocate
