To cancel your service simply return your modem to us. There should have been a prepaid return label in the box when you received your modem. If you need another one please use our chat feature below to let us know that you want to cancel your service and we'll email you a prepaid UPS or USPS if you request, return label. Just click on the "Chat" icon below in the bottom right corner and request to cancel your service and a return label. Please provide the name the account is under and the email address that you would like to receive the label at. Even if you don't get a live reply we'll get the message and send you the label ASAP. Once we receive the modem we will cancel your monthly automatic payments.