If a codicil is so inexpensive less then 100 if a client is charged around 400.00 can that client get some of the money back if over charged?

Codicils can range from a simple matter of changing the name of a beneficiary to redoing an entire estate plan, meaning that drafting them can take 10 minutes or 50 hours.  It isn't one size fits all.  Either way they have to be executed as formally as the will itself.  If you were overcharged, you may be able to recover the overage, if only because the attorney is afraid of having you accuse him/her of wrongdloing.  However, while rates vary considerably across the country (and some attorneys charge a flat rate for a will or codicil), where I practice in NYC most attorneys charge more than $400 per hour, and it is unlikely that drafting the codicil and supervising its execution (whcih I assume the attorney handled) took much less than an hour.