I received an early retirement offer in April 5, 2012 and I accepted the offer April 25, 2012. No terms or conditions. I was asked to stay on until a replacement for my position was found and that I assist in training this replacement, (verbal agreement). This I did. On Nov. 22, 2012, I received an e-mail stating the early retirement offer was a preliminary one and the amount of the pay out is reduced by 25%. From the date that I accepted the offer until the e-mail concerning the reduction I was in discussions with the president of our company and on each occasion, (about once monthly), and on each occasion he confirmed that the offer was good but they needed to verify the legal aspects and they were also looking out fro my best interests from a taxation standpoint. What do I do?

Was the acceptance of the offer on April 25, 2012 in writing?
What was the effective date? What did the original email offer specify as the procedure for acceptance of the offer? Did they find the replacement or did they encounter difficulty and are really rescinding the offer by reducing the payout?
Sorry for all the questions but I think that these facts and probably others need to be known in order for anyone here to offer opinions.

I would say you consult a lawyer