A return was submitted on November 14, 2022, but was rejected. The tax exempt status did not match what the IRS had on file. A paper filing was mailed on November 18, 2022. Subsequently, the Form 990-EZ filing by mail was returned with a response from the IRS dated 1/05/2023. After a review of our records and seeking outside counsel, we filed a letter with the IRS explaining that we had filed previous returns, including the return for tax year 2021, with the wrong EIN. The Medical Trust was recognized as tax exempt under Code Section 501(c)(9) in a determination letter dated 4/27/1993, using the EIN of 75-2407420. Recent forms 990-EZ were filed under the EIN of 20-6301526 in error.