Opting out of your membership will not be a complicated task, even if you don’t consider yourself particularly tech-savvy since Instant Checkmate’s dashboard is extremely easy to use. And if you don’t want to bother with canceling your account manually on the website, get help from their customer support representatives by calling them or writing them an email. If you submit your request via email, be advised that your account will be cancelled no sooner than 24 to 48 hours.