Please send us written notice to cancel service. In this notice, please include a brief reason for canceling and the date the cancellation is to take place. If email is available, just send a note to admin@pshift.com; alternate methods include faxes to 802-253-4326 and postal mail to PO Box 127, Stowe, Vermont 05672. Please be aware, if customers are on an annual plan, they will be refunded the remainder of their year, as though the used months were at the $19.95 rate, not the lower annual rate.