I opened a checking account recently at my local bank. I signed the signature card " using lawful money exclusively per Title 12 §411" above my name and signed using my first and middle name. The bank's legal dept called me today-a month or so after the account was opened. I have been signing all checks taken to my bank with "Redeemed in Lawful Money per USC Title 12§411" with my first and middle name only. Can the bank force me to fill out a new signature card? If the answer is no-what section of the USC can I use to rebut their demand?