Please see this article: Change or Cancel Your Subscription
If you can not login to CalendarBridge to cancel, please email support@calendarbridge.com from an email address that was connected to your CalendarBridge account. If you do not have access to any of the email addresses connected to your CalendarBridge account, please include: the last 4 digits of the credit/debit card; the date of the last charge; and the amount of the last charge.