In addition, your notice also contained inaccurate policy and fee information... Updated notifications, including accurate and current policy, additional permit validation terms and conditions and fee information...
The way I read your notice, it appears to me that your first notification contained some info or wording that needs changing in the "policy" area. I doubt it has anything to do with your actual permit date.
I am curious as to what wording will be changed. It would be fun to see the differences, if any of you cares to post the old and new versions.