Changing your Decision You may change your mind and revise or revoke your donation at any time. Completing a donation form does not in any way comprise a contract. It is only a pronouncement of your wishes and intentions. Your original donation form will be returned to you upon our receipt of your written request should you wish to revoke your donation. Should you marry, remarry, or change your surname or address, we ask you to inform us in writing. We will note the change and send you new donation forms to update our records. You will also be issued a new yellow donor pocket card.