As a follow up,
I called Amex this morning and presented my case. They still could not find the missing 25,000 MR bonus points that I was promised. They offered 5,000 MR for my troubles, but I declined, and asked instead to be downgraded to Pref. Rewards Green, and have the difference of the annual fee returned, which they had no problem doing.
Now I am looking forward to actually being able to sign up for the montly bonus point specials that come up.
-Andrew