Re: The IRS.
Be nice and back up your case with paper. They did something similar to me. Defense Finance doubled my vacation payout at retirement - two checks separated by a day. A year and a half later, the IRS tried to collect taxes and interest on $1800 of unreported income.
I wrote a note to the IRS office with copies of the two payment vouchers and the collection voucher and the corrected W-2.
2 weeks after the IRS office received my letter, I got a call from them to tell me my account was corrected, and "sorry for the inconvenience."
So, they're human and some of them know enough to apologize for mistakes.
We were audited by the State of Mo about 5 years ago and I found out that although they weild great power, the individual agents are really pretty nice. We had a couple of mistakes, but they could tell that all in all we try to comply with stuff, so we weren't in a lot of trouble or anything. That's always worked in our favor before -- just showing that you're not out to hide anything or cheat seems to go a long way! It's just going to take a bit, and this was the same co-worker I told you about who has mountains of stuff piled on her right now. Like she needs one more thing! I just feel bad for her! :o) Thanks for the encouragement!