A money-back guarantee is referenced on CogniMary's pages. We recommend confirming the exact current window and conditions directly at checkout before ordering, and getting confirmation in writing if possible.
Contact CogniMary's official customer support directly — not this website — with your order number, within the guarantee window confirmed at your time of purchase. Ask explicitly for written confirmation that any subscription or autoship has been cancelled.
Calendar your deadline the day your order arrives, and monitor your card statement for a couple of billing cycles afterward.