You may cancel your subscription at any time; just send us an email no less than 3 days in advance of your renewal date. Or you may do it directly from the members' area:
After logging in, first click on the "My Account Info" link (found at the right top corner of the page). Next, click on the "How do I cancel my membership?" link. Finally, submit your cancellation request.
When you close you account, you will have access to the service until the end of the paid period. All charges are non-refundable.
Please note that canceling your membership - and then reactivating it at a later date - would entail having to pay the new, full membership rates effective at the time of reactivation.