Yes, you can cancel at any time and receive a refund for the unused portion of your membership.
The refund is calculated as follows. If your are cancelling in the first year of your membership, we pay you the difference between the amount you paid and the amount you would have paid if you had been on monthly billing. If you are cancelling in a later year and it has been 45 days or less since your last renewal, we pay you the full amount of your last renewal. If you are cancelling in a later year and it has been more than 45 days since your last renewal, we pay you the difference between the amount you paid and the amount you would have paid if you had been on monthly billing.