There is no one definitive answer to this question, as the cancellation process will vary depending on the individual's specific situation and knot cash redemption methods. However, some tips on how to cancel your knot cash redemption may include calling your bank or card issuer and asking for a cancellation code, visiting your knot cash redemption site and cancelling your redemption before the redemption is processed, or using a knot cash redemption service like Fidelity knot cash redemption.