Should I negotiate my severance? - 6 weeks in

My manager said the package is final, but the letter gives me time to review. I would rather hear the honest version than the polite one. There is a non-disparagement clause. What did you ask for?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.

I asked for two more weeks and a neutral reference. They agreed to the reference and added a week.