Regarding Darby - I have spoken to the FDIC about this type of issue. According to the FDIC, Darby can't change the terms of the initial disclosure unless they specify in the disclosure that it is subject to change. They also need to state that near the term they plan to change. So, they can't say the CD allows unlimited deposits on page 2 and then say this is subject to change on page 5. I don't see that anywhere in the amended agreement. I don't have the initial PDF but if there is no "subject to change" language then Darby shouldn't have altered the agreement. I'd contact the FDIC. the Fed or your local banking commission.