This is what it said:
Thank you for providing us with the additional information about the issue we recently wrote you about. We are please to tell you that, with your help, we were able to clear up the difference between your records and your payers' records. If you sent us a payment based on our proposed changes, we will refund it to you if you owe no other taxes or have no other debts the law requres us to collect.
If you have already received a notification of a deficiency, you may disregard is. You won't need to file a petition with the United States Tax Court to reconsider the tax you owe. If you have already filed a petition, the Office of the District Counsel will contact you on the final closing of this case.
If you have questions about this notice, please write to us at the address shown above. Include your telephone number and the best time to call you if we need additional information.
Thank you for your cooperation.
That is not your everyday letter from the IRS. And I'm happy to have it.