Section 3--412. Acceptance Varying Draft

(1)  Where  the drawee's proffered acceptance in any manner varies the
  draft as presented the holder may refuse the acceptance  and  treat  the
  draft  as  dishonored  in  which case the drawee is entitled to have his
  acceptance cancelled.
    (2) The terms of the draft are not varied by an acceptance to  pay  at
  any particular bank or place in the United States, unless the acceptance
  states that the draft is to be paid only at such bank or place.
    (3) Where the holder assents to an acceptance varying the terms of the
  draft  each  drawer  and  indorser  who does not affirmatively assent is
  discharged.