Certified mail no: NOTICE TO CHANGE STATUS FROM DECEDENT TO NON-DECEDENT. IRS Notice Letter 2745C Address Correction Requested.Send a typewritten letter to the IRS office that sent the notice. Use the format in the sample letter below. If a letter is about a changed or corrected tax return, the taxpayer should review the information and compare it with the original return. Gov tool Should I file an amended return? I am writing to notify the IRS that I have been assigned a social security number. Please combine my tax records under this new number. There's a reason they want you to fill out their specific form, tedious though it may be. What Does the IRS Disclosure Notification Say?